History of Ohio Information
The history of Ohio as a state began when the Northwest Territory was divided in 1800 and the remainder reorganized for admission to the union in March, 1803 as the 17th state of the United States. The recorded history of Ohio began in the late 17th century when French explorers from Canada reached the Ohio River, from which the " Ohio Country" took its name, a river the Iroquois called O-y-o, "great river". Before that, Native Americans speaking Algonquin languages had inhabited Ohio and the central midwestern United States for hundreds of years until displaced by the Iroquois in the latter part of the 17th century. Other cultures not generally identified as " Indians", including the Hopewell "mound builders", preceded them. Human history in Ohio began a few millennia after formation of the Bering land bridge about 14,500BCE - see Prehistory of Ohio.
By the mid-18th century, a few American and French fur traders engaged historic Native American tribes in present-day Ohio in the fur trade. The Native Americans had their own extensive trading networks across the continent before the Europeans arrived. American settlement in the Ohio Country came after the American Revolutionary War and the formation of the United States, with its takeover of former British territory. Congress prohibited slavery in the Northwest Territory which presaged Ohio and the five states of the Territory entering the Union as free states. Ohio's population increased rapidly after United States victory in the Northwest Indian Wars brought peace to the Ohio frontier. In 1803, Ohio was admitted to the union as the 17th state. Settlement was chiefly by migrants from New England, New York and Pennsylvania. Southerners settled along the southern part of the territory, arriving by travel along the Ohio River from the Upper South. Yankees, especially in the " Western reserve" (near Cleveland), supported modernization, public education, and anti-slavery policies. The state supported the Union in the American Civil War, although antiwar Copperhead sentiment was strong in southern settlements.
After the Civil War, Ohio developed as a major industrial state. Ships traveled the Great Lakes to deliver iron ore and other products from western areas. This was also a route for exports, as were the railroads. In the late 19th and early 20th centuries, the fast-growing industries created jobs that employed hundreds of thousands of immigrants from Europe. In World War I Europe was closed off to passenger traffic. A new wave of migrants came from the South, with rural whites from Appalachia, and African Americans in the Great Migration from the Deep South, to escape Jim Crow and violence.
The cultures of Ohio's major cities became much more diverse with the traditions, cultures, foods, and music of the new arrivals. Ohio's industries were integral to American industrial power in the 20th century. In the later 20th century, economic restructuring in steel, railroads, and other heavy manufacturing cost the state many jobs as heavy industry declined. The economy in the 21st century has gradually shifted to depend on service industries such as medicine and education.
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A fossil which dated between 11,727 and 11,424 B.C. indicated that Paleo-Indians hunted large animals, including Jefferson's ground sloth, using stone tools.  Later ancestors of Native Americans were known as the Archaic peoples. Sophisticated successive cultures such as the Adena, Hopewell and Fort Ancient, built monumental earthworks such as massive monuments, some of which have survived to the present.
The Late Archaic period featured the development of focal subsistence economies and regionalization of cultures. Regional cultures in Ohio include the Maple Creek Culture of southwestern Ohio, the Glacial Kame Culture of western Ohio (especially northwestern Ohio), and the Red Ochre and Old Copper cultures across much of northern Ohio. Flint Ridge, located in present-day Licking County, provided flint, an extremely important raw material and trade good. Objects made from Flint Ridge flint have been found as far east as the Atlantic coast, as far west as Kansas City, and as far south as Louisiana, demonstrating the wide network of prehistoric trading cultures.[ citation needed]
About 800 BC, Late Archaic cultures were supplanted by the Adena culture. The Adenas were mound builders. Many of their thousands of mounds in Ohio have survived. Following the Adena culture was the Hopewell culture (c. 100 to c. 400 C.E.), which also built sophisticated mounds and earthworks, some of which survive at Hopewell and Newark Earthworks. They used their constructions as astronomical observatories and places of ritual celebration. The Fort Ancient culture also built mounds, including some effigy mounds. Researchers first considered the Serpent Mound in Adams County, Ohio to be an Adena mound. It is the largest effigy mound in the United States and one of Ohio's best-known landmarks. Scholars believe it may have been a more recent work of Fort Ancient people.[ citation needed] In Southern Ohio alone, archaeologists have pinpointed 10000 mounds used as burial sites and have excavated another 1000 earth-walled enclosures, including one enormous fortification with a circumference of about 3.5 miles, enclosing about 100 acres. We now know from a great variety of items found in the mound tombs - large ceremonial blades chipped from obsidian rock formations in Yellowstone National Park; embossed breast-plates, ornaments and weapons fashioned from copper nuggets from the Great Lakes region; decorative objects cut from sheets of mica from the southern Appalachians; conch shells from the Atlantic seaboard; and ornaments made from shark and alligator teeth and shells from the Gulf of Mexico - that the Mound Builders participated in a vast trading network that linked together hundreds of Native Americans across the continent.  It has also been found that Hopewell era settlements were cities by population density alone, with thousands of residents at their peak.
After the Hopewell collapsed, though, there was little to nothing left but small, unaffiliated farming villages until after 900 AD, when new cultures slowly began to emerge. Sometime, presumably between the years 1100 and 1300 AD, Iroquoian people's began to aggressively expand their influence, conquering into Ohio from the northeast and displacing many of the preexisting cultures in the Great Lakes Region.
When modern Europeans began to arrive in North America, they traded with numerous Native American (also known as American Indian) tribes for furs in exchange for goods. In the year 1600 AD, Ohio was divided between several native tribes who were part of three cultures- Iroquoians, Algonquians and Siouans. The tribes we know by name were the Erie in the Northeast, the Mascouten north of the Maumee River, the Miami in the west and the Mosopelea in the southeast. Fort Ancients held the south and another group called The Monongahela Culture extended slightly into eastern Ohio, just south of the Erie, from across the Ohio River. But, a combination of war and disease quickly decimated the local people's before much interaction could take place and all tribes except the Miami were either permanently driven away, or destroyed.
When the Iroquois Confederacy depleted the beaver and other game in its territory in the New York region, they launched a war known as the Beaver Wars, destroying or scattering the contemporary inhabitants of the region. During the Beaver Wars in the 1650s, the Iroquois nearly destroyed the Erie along the shore of Lake Erie. Overall, they managed to expand their territory through the North shore of Lakes Ontario and Erie, throughout Ohio, Indiana and southern Michigan and south from their original Homeland in New York, all the way to the James River in Virginia when the war seems to have officially ended in 1701, but the French began aiding other native people's who had fled west and took nearly all of that land for themselves, naming it the Illinois Colony.
During the war, the Sauk and Fox tribe, who were Algonquian people's displaced from the Ottawa River valley in Canada, migrated into Ohio and Michigan before the Iroquois quickly drove them all the way to Minnesota. After the war, Ohio mainly belonged to only Iroquoians and Algonquians- the Mingo/ Seneca, the Shawnee (formerly the Powhatan of Virginia), the Lenape/ Delaware, the Miami, the Ottawa/ Mississauga/ Chippewa (not to be confused with the Ottawa who were still a part of the Anishinaabeg of Lake Superior, or the Algonquians of the Ottawa River), the Wyandot and the Guyandotte/ Little Mingo. The Lenape had relocated from New Jersey and the Ottawa and Wyandot seem to have been formed from Algonquian, Huron and Anishinaabeg captured by the Iroquois during the war, who broke free of their control. The Guyandotte may have been related to a small Iroquoian tribe called the Petun, which had also been destroyed in the war.
Native people's in Ohio were known to grow different varieties of corn, Lima beans and squash. The Hopewells had also domesticated Goosefoot, a local variant of quinoa, as well as Sunflower, but Fort Ancients traded goosefoot for corn when it arrived in the 14th century. It would appear that squash is the oldest domesticated plant in the Ohio River Valley.
Wild native plants that Native Americans were known to, or may have likely, utilized for food are as follows: Acorn*, Beech Nut*, Bergamot, Black Cherry, Black Raspberry, Black Walnut, Blueberry, Bog Rosemary*, Butternut, Cattail, Chestnut*, Chokecherry, Crabapple, Cranberry, Dewberry, Elderberry*, Filé (Sassafras), Firethorn Berry, Ginger, Haw, Hazelnut, Hickory Nut, Highbush cranberry, Hogpeanut, Indian Cucumber, Indian Potato, Jerusalem artichoke, Juniper berry*, Kentucky coffeetree*, Lady Fern*, Leatherleaf*, Lilypad Root, Maple (syrup and sugar), Milkweed*, Papaw, Partridgeberry, Persimmon, Red Currant, Red Mulberry, Rowan Berry, Serviceberry, Spicebush Laurel*, Spruce (pine nuts, nettles as spice, cuttings for spruce tea/ beer, sap as chewing gum ingredient and spruce tips for jelly), Sumac, Tuckahoe, Wild Carrot, Wild Grape (juice only), Wild Mint (various), Wild Onion, Wild Peas*, Wild Plum, Wild rice, Wild Rose ( Illinois and Swamp roses), Wild Strawberry, Wild Sweet Potato and Wintergreen (berries and leaves).
- Asterisks follow if potential risk of poison, or easy confusion for poisonous lookalike.
In 1608, French explorer and founder of Quebec City Samuel Champlain sided with the Ottawa River Algonquian, Huron and surviving Saint Lawrence Iroquoian peoples living along the St. Lawrence River against the Iroquois Confederacy ("Five Nations") living in what is now upper and western New York state in what was known as the Ticonderoga War. The result was a lasting enmity by the Iroquois Confederacy towards the French, which caused them to side with the Dutch fur traders coming up the Hudson River in about 1626.  But, as the Dutch feared giving the Iroquois firearms, they later found new allies- presumably the English, 30 years before the English had formally claimed Iroquois lands.
With these more sophisticated weapons, the Five Nations nearly exterminated[ citation needed] the Huron and all of the other Native Americans living immediately to their west in the Ohio country during the Beaver Wars, beginning in 1632. The Five Nations's use of modern weapons caused the wars to become deadlier. Historians consider the Beaver Wars to have been one of the bloodiest conflicts in the history of North America.
The Five Nations enlarged their territory by right of conquest. The number of tribes paying tribute to them realigned the tribal map of eastern North America. Several large confederacies were destroyed or relocated, including the Huron, Neutral, Erie, Susquehannock, Miami, Weskerini Algonquian, Kichesipirini Algonquian, Mascouten, Fox, Sauk, Petun, Manahoac and Saponi-Tutelo. The Five Nations pushed several eastern tribes to and even across the Mississippi River, as well as south, into the Carolinas. After the Five Nations' warriors were defeated between 1670 and 1701, the French and their allies took control, but the French-Indian Wars between England, France and all their remaining native allies, began just a few years later. Several small wars between the two countries in Europe spilled over into the Americas and were used as an excuse to try to seize more territory. By the late 1750s, all of the former Illinois Colony had been conquered and renamed the Ohio Country.  
After the French-Indian Wars, one final war occurred immediately before the Revolutionary War. Dunmore's War was fought between the English and Shawnee roughly between Yellow Creek in Columbiana County and the West Virginia- Kentucky border. The English locals claimed that the Shawnee had been rustling cattle, but it was later concluded that they had lied to facilitate a war. Of the two Shawnee chiefs who fought in the war, Chief Logan's family were all hunted down and assassinated and Chief Cornstalk was said to have cursed the land where his village had once stood. 
Among the Mingo Seneca, the brother of Chief Cornplanter, a high ranking False Face (Iroquois Shaman) reworked the old Iroquois religion into the Longhouse Church when in Ohio. This version of Iroquois religion took on various Christian elements (belief in hell, downgrading of all deities aside the Creator to something akin to angels/ demons and regular Church meetings) while keeping alive most of the old holidays and ceremonies and is still practiced by most members of the Iroquois Confederacy today. 
In the 17th century, the French were the first modern Europeans to explore what became known as Ohio Country.  In 1663, it became part of New France, a royal province of French Empire, and northeastern Ohio was further explored by Robert La Salle in 1669. 
During the 18th century, the French set up a system of trading posts to control the fur trade in the region, linked to their settlements in present-day Canada and what they called the Illinois Country along the Mississippi River. Fort Miami on the site of present-day St. Joseph, Michigan was constructed in 1680 by New France Governor-General Louis de Buade de Frontenac.  They built Fort Sandoské by 1750 (and perhaps a fortified trading post at Junundat in 1754). 
By the 1730s, population pressure from expanding European colonies on the Atlantic coast compelled several groups of Native Americans to relocate to the Ohio Country. From the east, the Delaware and Shawnee arrived, and Wyandot and Ottawa from the north. The Miami lived in what is now western Ohio. The Mingo formed out of Iroquois who migrated west into the Ohio lands, as well as some refugee remnants of other tribes.
Christopher Gist was one of the first English-speaking explorers to travel through and write about the Ohio Country in 1749. When British traders such as George Croghan started to do business in the Ohio Country, the French and their northern Indian allies drove them out. In 1752 the French raided the Miami Indian town of Pickawillany (modern Piqua, Ohio). The French began military occupation of the Ohio Valley in 1753.
By the mid-18th century, British traders were rivaling French traders in the area.  They had occupied a trading post called Loramie's Fort, which the French attacked from Canada in 1752, renaming it for a Frenchman named Loramie and establishing a trading post there. In the early 1750s George Washington was sent to the Ohio Country by the Ohio Company to survey, and the fight for control of the territory would spark the French and Indian War. It was in the Ohio Country where George Washington lost the Battle of Fort Necessity to Louis Coulon de Villiers in 1754, and the subsequent Battle of the Monongahela to Charles Michel de Langlade and Jean-Daniel Dumas to retake the country 1755. The Treaty of Paris ceded the country to Great Britain in 1763. During this period the country was routinely engaged in turmoil, with massacres and battles occurring among the tribes.
Prior to the American Revolution, Britain thinly exercised sovereignty over Ohio Country by lackadaisical garrisoning of the French forts.  Just beyond Ohio Country was the great Miami capital of Kekionga which became the center of British trade and influence in Ohio Country and throughout the future Northwest Territory. By the Royal Proclamation of 1763, British lands west of Appalachia were forbidden to settlement by colonists. The Treaty of Fort Stanwix in 1768 explicitly reserved lands north and west of the Ohio as Indian lands. British military occupation in the region contributed to the outbreak of Pontiac's Rebellion in 1763. Ohio Indians participated in that war until an armed expedition in Ohio led by Colonel Henry Bouquet brought about a truce. Another colonial military expedition into the Ohio Country in 1774 brought Lord Dunmore's War to a conclusion. Lord Dunmore constructed Fort Gower on the Hocking River in 1774. 
As a result of the exploits of George Rogers Clark in 1778, Ohio Country (including the territory of the future state of Ohio) as well as eastern Illinois Country, became Illinois County, Virginia by claim of conquest under the Virginia Colony charter. The county was dissolved in 1782 and ceded to the United States.
During the American Revolutionary War, Native Americans in the Ohio Country were divided over which side to support. For example, the Shawnee leader Blue Jacket and the Delaware leader Buckongahelas sided with the British. Cornstalk (Shawnee) and White Eyes (Delaware) sought to remain friendly with the rebellious colonists. There was major fighting in 1782.  American colonial frontiersmen often did not differentiate between friendly and hostile Indians, however. Cornstalk was killed by American militiamen, and White Eyes may have been. One of the most tragic incidents of the war — the killing of 96 Christian Delaware by U.S. militiamen from Pennsylvania on March 8, 1782 at the Moravian missionary village of Gnadenhutten, known as the Gnadenhutten massacre — took place in Ohio.  In May of that year, George Washington's close friend William Crawford was captured while leading an expedition against Lenape at Upper Sandusky, Ohio. Though Crawford was not at Gnadenhutten, in revenge, he was tortured for hours then burned at the stake.
With the American victory in the Revolutionary War, the British ceded claims to Ohio and its territory in the West as far as the Mississippi River to the new nation. Between 1784 and 1789, the states of Virginia, Massachusetts and Connecticut ceded their earlier land claims in Ohio Country to Congress, but Virginia and Connecticut maintained reserves.  These areas were known as the Virginia Military District and Connecticut Western Reserve.  
Starting even before the war, and accelerating with the establishment of Fort Henry across the Ohio River in West Virginia, numerous settlers encroached on Indian lands west of the Ohio River in a broad arc from west of Fort Henry as far upriver as where Fort Steuben (today Steubenville) was later established. That there was continuous occupation of such lands is certain, though the location and continuity of any particular settlement, at least a few of which were referred to loosely as "towns" is very much in doubt. Most prominent among these were a series of squatters settlements with various names circa 1774 to 1795 in the area of what is today Martin's Ferry, directly across river from Fort Henry. European settlement of Ohio may fairly be said to have been in progression before establishment of the Northwest Territory and the first generally recognized town of Marietta. 
In 1787, the United States created the Northwest Territory under the Northwest Ordinance of that year. Ebenezer Sproat became a shareholder of the Ohio Company of Associates, and was engaged as a surveyor with the company.   On April 7, 1788, Ebenezer Sproat and a group of American pioneers to the Northwest Territory, led by Rufus Putnam, arrived at the confluence of the Ohio and Muskingum rivers to establish Marietta, Ohio as the first permanent American settlement in the Northwest Territory.    Marietta was founded by New Englanders.  It was the first of what would become a prolific number of New England settlements in what was then the Northwest Territory.  These New Englanders or " Yankees" as they were called, were descended from the Puritan English colonists who had settled New England in the 1600s and were members of the Congregationalist church. Correspondingly, the first church in Marietta was a Congregationalist church which was constructed 1786. 
Colonel Sproat, was a notable member of the pioneer settlement of Marietta. He greatly impressed the local Indians, who in admiration dubbed him "Hetuck", meaning "eye of the buck deer" "Big Buckeye".    Historians believe this is how Ohio came to be known as the Buckeye State and its residents as Buckeyes. 
The Miami Company (also referred to as the "Symmes Purchase") managed settlement of land in the southwestern section. The Connecticut Land Company administered settlement in the Connecticut Western Reserve in present-day Northeast Ohio. A heavy flood of migrants came from New York and especially New England, where there had been a growing hunger for land as population increased before the Revolutionary War. Most traveled to Ohio by wagon and stagecoach, following former Indian paths such as the Northern Trace. Many also traveled part of the way by barges on the Mohawk River across New York state. Farmers who settled in western New York after the war sometimes moved on to one or more locations in Ohio in their lifetimes, as new lands kept opening to the west.
American settlement of the Northwest Territory was resisted by Native Americans in the Northwest Indian War. Two years after the Revolution, the US had begun offering people subsidies to move into the Ohio and Tennessee River Valleys to establish farms and virtually all Native people's in the threatened territories joined forces and fought back. In Ohio, the Miami, Wyandot, Shawnee, Lenape, Seneca, Ottawa, Wabash, Illinois, Hochunk, Sauk and Fox nations joined under an Miami warrior who had been asked to fight as their War Chief, Little Turtle. They were eventually conquered by General Anthony Wayne at the Battle of Fallen Timbers in 1794. They ceded much of present-day Ohio to the United States by the Treaty of Greenville, concluded in 1795.
Starting in the early 19th century, after the acquisition of the Louisiana Purchase, Congress began investing heavily in trying to convince Natives in the East to relocate west of the Mississippi. The Lenape were a test, and were removed in 1809, but when they complained that the natives of that region were being aggressive towards them and there wasn't enough to hunt and forage, the project was scrapped for several more decades. 
The U.S. Congress prohibited slavery in the territory. (Once the population grew and the territory achieved statehood, the citizens could have legalized slavery, but chose not to do so.) The states of the Midwest would be known as Free States, in contrast to those states south of the Ohio River. Migrants to the latter came chiefly from Virginia and other slave-holding states, and brought their culture and slaves with them.
As Northeastern states abolished slavery in the coming two generations, the free states would be known as Northern States. The Northwest Territory originally included areas previously called Ohio Country and Illinois Country. As Ohio prepared for statehood, Indiana Territory was carved out, reducing the Northwest Territory to approximately the size of present-day Ohio plus the eastern half of Michigan's lower peninsula and a sliver of land in southeastern Indiana along Ohio's western border called "The Gore".
With Ohio's population reaching 45,000 in December 1801, Congress determined that the population was growing rapidly and Ohio could begin the path to statehood. The assumption was the territory would have in excess of the required 60,000 residents by the time it became a state. Congress passed the Enabling Act of 1802 that outlined the process for Ohio to seek statehood. The residents convened a constitutional convention. They used numerous provisions from other states and rejected slavery.
On February 19, 1803, President Jefferson signed the act of Congress that approved Ohio's boundaries and constitution. Congress did not pass a specific resolution formally admitting Ohio as the 17th state. The current custom of Congress' declaring an official date of statehood did not begin until 1812, when Louisiana was admitted as the 18th state.
Starting around 1809, the Shawnee began to feel restless again. Under Chief Tecumseh, the Shawnee War officially began in Ohio in 1811. When the war of 1812 began, the English decided to attack from Canada into Ohio and merge their forces with the Shawnee. This continued until Tecumseh was killed on an unknown battlefield in 1813. Most of the Shawnee, excluding the Pekowi, or Piqua tribe in Southwest Ohio, were forcibly relocated west. 
In 1812, the English and the United States got into a dispute because the English kept invading American ships, claiming random people to be English draft dodgers and taking them away to fight in the British Royal Navy in the Napoleonic Wars. After several requests to stop seemed to go unanswered, the US invaded Canada, laying siege to the cities of Montreal, Quebec and Halifax, prompting an English military response.
Ohio played a key role in the War of 1812, as it was on the front line in the Western theater and the scene of several notable battles both on land and in Lake Erie. On September 10, 1813, the Battle of Lake Erie, one of the major battles, took place in Lake Erie near Put-in-Bay, Ohio. The British eventually surrendered to Oliver Hazard Perry.
The outcome of the Shawnee War also caused the Red Stick War in Alabama in 1813. Tecumseh had approached several tribes for help beforehand, but all had ignored his pleas, despite support. The Red Sticks, a faction of Shawnee supporters among the Muscogee, or Creek Confederacy, broke loose and began attacking military installations in retaliation to his death. Other Muscogee Creeks who didn't support war took care of the problem themselves before it got out of hand. 
Ultimately, after the Indian Removal Act of 1830 was used heavy-handedly to facilitate the Trail of Tears, where all the southern states except for Florida were successfully emptied of Native peoples, the US government panicked. Fearing further wars, they pushed all remaining Native tribes in the East to migrate west of their own accord, including all remaining tribes in Ohio.  The final tribe to leave were the Wyandot in 1843. 
Throughout much of the 19th century, industry was rapidly introduced to complement an existing agricultural economy. One of the first iron manufacturing plants opened near Youngstown in 1804 called Hopewell Furnace. By the mid-19th century, 48 blast furnaces were operating in the state, most in the southern portions of the state.  Discovery of coal deposits aided the further development of the steel industry in the state, and by 1853 Cleveland was the third largest iron and steel producer in the country. The first Bessemer converter was purchased by the Cleveland Rolling Mill Company, which eventually became part of the U.S. Steel Corporation following the merger of Federal Steel Company and Carnegie Steel, the first billion-dollar American corporation.  The first open-hearth furnace used for steel production was constructed by the Otis Steel Company in Cleveland, and by 1892, Ohio ranked as the 2nd-largest steel producing state behind Pennsylvania.  Republic Steel was founded in Youngstown in 1899, and was at one point the nation's third largest producer. Armco, now AK Steel, was founded in Middletown also in 1899.
Tobacco processing plants were founded in Dayton by the 1810s and Cincinnati became known as "Porkopolis" in being the nation's capital of pork processing, and by 1850 it was the third largest manufacturing city in the country.  Mills were established throughout the state, including one in Steubenville in 1815 which employed 100 workers. Manufacturers produced farming machinery, including Cincinnati residents Cyrus McCormick, who invented the reaper, and Obed Hussey, who developed an early version of the mower.  Columbus became known as the "Buggy Capital of the World" for its nearly two dozen carriage manufacturers.[ citation needed] Dayton became a technological center in the 1880s with the National Cash Register Company.  For roughly ten years during the Ohio Oil Rush in the late 19th century, the state enjoyed the position of leading producer of crude oil in the country. By 1884, 86 oil refineries were operating in Cleveland, the home of Standard Oil, making it the "oil capital of the world",  while producing the world's first billionaire, John D. Rockefeller.
Herbert H. Dow founded the Dow Chemical Company in Cleveland in 1895, today the world's second largest chemical manufacturer. In 1898 Frank Seiberling named his rubber company after the first person to vulcanize rubber, Charles Goodyear, which today is known as Goodyear Tire and Rubber Company. Seeing the need to replace steel-rimmed carriage tires with rubber, Harvey Firestone started Firestone Tire and Rubber Company and began selling to Henry Ford. The Ohio Automobile Company eventually became known as Packard, while Benjamin Goodrich entered the rubber industry in 1870 in Akron, founding Goodrich, Tew & Company, better known as the Goodrich Corporation in the present era.
By the late 19th century, Ohio had become a global industrial center.  Natural resources contributed to the industrial growth, including salt, iron ore, timber, limestone, coal, and natural gas, and the discovery of oil in northwestern Ohio led to the growth of the port of Toledo.  By 1908, the state had 9,581 miles of railroad linking coal mines, oil fields, and industries with the world.  Commercial enterprise began to prosper around towns with banks. 
William Procter and James Gamble started a company which produced a high quality, inexpensive soap called Ivory, which is still the best known product today of Procter and Gamble. Michael Joseph Owens invented the first semi-automatic glass-blowing machine while working for the Toledo Glass Company.  The company was owned by Edward Libbey, and together the pair would form companies which ultimately became known as Owens-Illinois and Owens Corning.
Charles Kettering invented the first automatic starter for automobiles, and was the co-founder of Delco Electronics, today part of Delphi Corporation. The Battelle Memorial Institute perfected xerography, resulting in the company Xerox. At Cincinnati's Children's Hospital, Albert Sabin developed the first oral polio vaccine, which was administered throughout the world.
In 1955, Joseph McVicker tested a wallpaper cleaner in Cincinnati schools, eventually becoming known as the product Play-Doh. The same year the Tappan Stove Company created the first microwave oven made for commercial, home use. James Spangler invented the first commercially successful portable vacuum cleaner, which he sold to The Hoover Company.
African American inventors based in Ohio achieved prominence. After witnessing a car and carriage crash, Garrett Morgan invented one of the earliest traffic lights; he was a leader in the Cleveland Association of Colored Men. Frederick McKinley Jones invented refrigeration devices for transportation which ultimately led to the Thermo King Corporation. In Cincinnati, Granville Woods invented the telegraphony, which he sold to a telephone company. John P. Parker of Ripley invented the Parker Pulverizer and screw for tobacco processes.
Ohio's economic growth was aided by their pursuit of infrastructure. By the late 1810s, the National Road crossed the Appalachian Mountains, connecting Ohio with the east coast. The Ohio River aided the agricultural economy by allowing farmers to move their goods by water to the southern states and the port of New Orleans. The construction of the Erie Canal in the 1820s allowed Ohio businesses to ship their goods through Lake Erie and to the east coast, which was followed by the completion of the Ohio and Erie Canal and the connection of Lake Erie with the Ohio River. This gave the state complete water access to the world within the borders of the United States. Other canals included Miami and Erie Canal.  The Welland Canal would eventually give the state alternative global routes through Canada.
The first railroad in Ohio was a 33-mile line completed in 1836 called the Erie and Kalamazoo Railroad, connecting Toledo with Adrian, Michigan. The Ohio Loan Law of 1837 allowed the state to loan one-third of construction costs to businesses, passed initially to aid the construction of canals, but instead used heavily for the construction of railroads. The Little Miami Railroad was granted a state charter in 1836 and was completed in 1848, connecting Cincinnati with Springfield. Construction of a commuter rail began in 1851 called the Cincinnati, Hamilton, and Dayton Railroad. This allowed the affluent of Cincinnati to move to newly developed communities outside the city along the rail. The Ohio and Mississippi Railroad was given financial support from the city of Cincinnati and eventually connected them with St. Louis, while the Baltimore and Ohio Railroad crossed the Appalachians in the mid-1850s and connected the state with the east coast. 
The investment in infrastructure complemented Ohio's central location and put it at the heart of the nation's transportation system traveling north and south and east and west, and also gave the state a headstart during the national industrialization process which occurred between 1870 and 1920. 
Water ports sprang up along Lake Erie, including the Port of Ashtabula, Port of Cleveland, Port of Conneaut, Fairport Harbor, Port of Huron, Port of Lorain, Port of Marblehead, Port of Sandusky, and Port of Toledo. The Port of Cincinnati was built on the Ohio River.
Following the commercialization of air travel, Ohio became a key route for east to west transportation. The first commercial cargo flight occurred between Dayton and Columbus in 1910. Cleveland Hopkins International Airport was built in 1925 and became home to the first air traffic control tower, ground to air radio control, airfield lighting system, and commuter rail link.
The Interstate Highway System brought new travel routes to the state in the mid-20th century, further making Ohio a transportation hub.
With the rapid increase of industrialization in the country in the late 19th century, Ohio's population swelled from 2.3 million in 1860 to 4.2 million by 1900. By 1920, nine Ohio cities had populations of 50,000 or more. 
The rapid urbanization brought about a growth of commercial industries in the state, including many financial and insurance institutions. The National City Corporation was founded in 1845, today part of PNC Financial Services. Cleveland's Society for Savings was founded in 1849, eventually becoming part of KeyBank. The Bank of the Ohio Valley opened in 1858, becoming known as Fifth Third Bank today. City National Bank and Trust Company was founded in 1866 in Columbus, eventually becoming Bank One. The American Financial Group was founded in 1872 and the Western & Southern Financial Group in 1888 in Cincinnati. The Farm Bureau Mutual Automobile Insurance Company was founded in Columbus in 1925, today known as the Nationwide Mutual Insurance Company.
Major retail operations emerged in the state, including Kroger in 1883 in Cincinnati, today second only to Walmart. Federated Department Stores was founded in Columbus in 1929, known today as Macy's. The Sherwin-Williams Company was founded in 1866 in Cleveland.
Frisch's Big Boy was opened in 1905 in Cincinnati. American Electric Power was founded in Columbus in 1906. The American Professional Football Association was founded in Canton in 1922, eventually becoming the National Football League. The Cleveland Clinic was founded in 1921 and presently is one of the world's leading medical institutions.
Education has been an integral part of Ohio culture since its early days of statehood. In the beginning, mothers usually educated their children at home or paid for their children to attend smaller schools in villages and towns.  Early on, the US was interested in creating a national public schooling system, but the irony came to be that, in Ohio, the various religious groups who had settled here refused to allow one another any say in what their own children would be taught, causing the issue to be constantly put on hold. In 1821 the state passed a tax to finance local schools.  In 1822, Caleb Atwater lobbied the legislature and Governor Allen Trimble to establish a commission to study the possibility of initiating public, common schools. Atwater modeled his plan after the New York City public school system. After public opinion in 1824 forced the state to find a resolution to the education problem, the legislature established the common school system in 1825 and financed it with a half-million property levy. 
They ultimately chose to relax state authority over school curriculum and gave Ohio schools regional authority over the matter. It would remain as such until the 20th century, but has caused a fairly erratic, confusing and sometimes lacking schooling experience in some subjects, even if generally adequate to get by.
School districts formed, and by 1838 the first direct tax was levied allowing access to school for all.  The first appropriation for the common schools came in 1838, a sum of $200,000. The average salary for male teachers in some districts during this early period was $25/month and $12.50/month for females.  By 1915, the appropriations for the common schools totaled over $28 million.  The first middle school in the nation, Indianola Junior High School (now the Graham Expeditionary Middle School), opened in Columbus in 1909. McGuffey Readers was a leading textbook originating from the state and found throughout the nation.
Original universities and colleges in the state included the Ohio University, founded in Athens, in 1804, the first university in the old Northwest Territory and ninth-oldest in the United States. Miami University in Oxford, Ohio was founded in 1809, the University of Cincinnati in 1819, Kenyon College in Gambier in 1824, Western Reserve University in Cleveland in 1826, Xavier University in Cincinnati and Denison University in Granville in 1831, Oberlin College in 1833, Marietta College in 1835, the Ohio Wesleyan University in Delaware in 1842, and the University of Dayton in 1850. Wilberforce University was founded in 1856 and the University of Akron and Ohio State University followed in 1870, with the University of Toledo in 1872.
After 2000, Ohio State government began experimentally exerting more control over schools, as they attempted to help the state's education system evolve with the times. As of 2020, it largely seems to have done just as much harm as good and re-exposed a lot of the issues inherent in how Ohio schooling was originally organized, which they are now desperately trying to solve.  
Rural Ohio in the 19th century was noted for its religious diversity, tolerance and pluralism, according to Smith (1991). With so many active denominations, no one dominated and, increasingly, tolerance became the norm. Germans from Pennsylvania and from Germany brought Lutheran and Reformed churches and numerous smaller sects such as the Amish. Yankees brought Presbyterians and Congregationalists. Revivals during the Second Great Awakening spurred the growth of Methodist, Baptist and Christian (Church of Christ) churches. The building of many denominational liberal arts colleges was a distinctive feature of the 19th century. By the 1840s German and Irish Catholics were moving into the cities, and after the 1880s Catholics from eastern and southern Europe arrived in the larger cities, mining camps, and small industrial centers. Jews and Eastern Orthodox settlements added to the pluralism, as did the building of black Baptists and Methodist churches in the cities. 
During the Progressive Era, Washington Gladden was a leader of the Social Gospel movement in Ohio. He was the editor of the influential national magazine the Independent after 1871, and as pastor of the First Congregational Church of Columbus, Ohio from 1882 to his death in 1918. Gladden crusaded for Prohibition, resolving conflicts between labor and capital; he often denounced racial violence and lynching. 
Early Ohio state culture was a product of Native American cultures, which were pushed away between 1795 and 1843. Many of Native American descent did remain, but had often converted to some form of Christianity, and/ or married into European descended families, so the cultures themselves did not last here. This was especially exasperated in the late 19th century, when racial violence against all sorts of people- including Native Americans- reached such a horrifying peak nationwide, that most such people went out of their ways to seem as white as possible. 
It was easier for people who were only part Native, as most Ohioans no longer knew what such people really looked like and their skin was fair enough that they could claim Italian, Hispanic or Greek descent and disappear into those communities. Still, Ohio does have plenty today who claim Iroquoian, Lenape, Chippewa, Shawnee, Cherokee (usually Shattara/ Shenandoah, not really Cherokee) or Blackfoot (Saponi-Tutelo and Manahoac) descent and are proud of it.
The northeastern part of Ohio was settled by Yankees from Connecticut, and pioneers from New York and Pennsylvania. The Connecticut Western Reserve became the center for modernization and reform.  They were sophisticated, educated, and open minded, as well as religious.  Some of the original settlers from Connecticut were Amos Loveland, a revolutionary soldier, and Jacob Russell.  They faced a rough wilderness life, where the common living arrangement was the log cabin.  As the pioneer culture faded in the mid-19th century, Ohio had over 140,000 citizens of native New England origin, including New York.  One of the New Yorkers who came to the state during this period was Joseph Smith, founder of the Latter Day Saint movement, whose church in Kirtland was the home of the movement for a period of time.
Other early pioneers came from the Mid-Atlantic states, especially Pennsylvania and Virginia, some settling on military grant lands in the Virginia Military District. From Virginia came members of the Harrison family of Virginia, who rose to prominence in the state, producing Ohio's first of eight U.S. Presidents. William Henry Harrison's campaign of 1840 came to represent the pioneer culture of Ohio, symbolized by his Log cabin campaign. The theme song of his campaign, the "Log Cabin Song,"  was authored by Otway Curry, who was a nationally known poet and author. 
Ohio was largely agricultural before 1850, although gristmills and local forges were present. Clear-cut gender norms prevailed among the farm families who settled in the Midwestern region between 1800 and 1840. Men were the breadwinners who considered the profitability of farming in a particular location – or "market-minded agrarianism" – and worked hard to provide for their families. They had an almost exclusive voice regarding public matters, such as voting and handling the money. During the migration westward, women's diaries show little interest in and financial problems, but great concern with the threat of separation from family and friends. Furthermore, women experienced a physical toll because they were expected to have babies, supervise the domestic chores, care for the sick, and take control of the garden crops and poultry. Outside the German American community, women rarely did fieldwork on the farm. The women set up neighborhood social organizations, often revolving around church membership, or quilting parties. They exchanged information and tips on child-rearing, and helped each other in childbirth. 
Large numbers of German Americans arrived from Pennsylvania, augmented by new immigrants from Germany. They all clung to their German language and Protestant religions, as well as their specialized tastes in food and beer. Brewing was a main feature of the German culture. Their villages from this period included the German Village in Columbus. They also founded the villages of Gnadenhutten in the late 18th century; Bergholz, New Bremen, New Berlin, Dresden, and other villages and towns. The German Americans immigrating from the Mid-Atlantic states, especially eastern Pennsylvania, brought with them the Midland dialect, which is still found throughout much of Ohio.   For instance, in Philadelphia water is pronounced with a long o versus the normal short o, the same as in many areas of Ohio. African Americans of the Underground Railroad began coming to the state, some settling, others passing through on the way to Canada. Universities and colleges opened up all over the state, creating a more educated culture.
By the last half of the 19th century, the state became more diverse culturally with new immigrants from Europe, including Ireland and Germany. The Forty-Eighters from Central Europe settled the Over-the-Rhine neighborhood in Cincinnati, while the Irish immigrants settled throughout the state, including Flytown in Columbus. Other immigrants from Russia, Turkey, China, Japan, Finland, Greece, Italy, Romania, Poland, and other places came in the latter years.  Around the start of the 20th century, rural southern European Americans and African Americans came north in search of better economic opportunity, infusing Hillbilly culture into the state. Newer ethnic villages emerged, including the Slavic Village in Cleveland and the Italian Village and Hungarian Village in Columbus. Howard Chandler Christy, born in Morgan County, became a leading American artist during this century, as well as composer Dan Emmett, founder of the Blackface tradition. Ohio's mines factories and cities attracted Europeans. Irish Catholics poured in to construct the canals, railroads, streets and sewers in the 1840s and 1850s. 
After 1880, the coal mines and steel plants attracted families from southern and eastern Europe. A large influx of people moving into Ohio from neighboring West Virginia and Kentucky also occurred. The sparsely populated regions of Appalachia had laregly been stripped of resources by logging and mining companies, leaving little and few prospects for the locals. Steel and rubber manufacturers were even known to scout these regions for new workers and invested in infrastructure and the building of new suburbs to lure them in. Places like Akron, OH were almost single-handedly built this way, as the modern city was only a small town prior to the early-mid 20th century.
By 1901, the Midwest (Indiana, Illinois, Wisconsin, Michigan, and Ohio) had absorbed 5.8 million foreign immigrants and another million by 1912. 
Immigration was cut off by the World War in 1914, allowing the ethnic communities to Americanize, grow much more prosperous, served in the military, and abandon possible plans to return to the old country.  Flows were very low between 1925 and 1965, then began to increase again, this time with many arrivals from Asia and Mexico.
Since then, there were larger influxes from the Jewish community, following World War II and a spike in the numbers of Middle Easterners following successive conflicts in the region during the late 20th and early 21st centuries. Ohio has also become a common destination for foreign college students worldwide, with many choosing to remain in the state after.
While Ohio has been the most like a "Melting Pot" than most other places in the US, whereas virtually all arriving cultures largely merged into a homogenous group with very little distinction, aside religion, there has been growing public interest in recent years of people returning to their ancestors' roots, forming extraneous shared-culture communities within larger communities, and to ultimately become more of a "mosaic."
Industrialization brought a shift culturally as urbanization and an emerging middle class changed society. Athletics became increasingly popular as the first professional baseball team, the Cincinnati Reds, started playing at that level in 1869, and football leagues emerged. Bathhouses and rollercoasters became a popular past time with the opening of Cedar Point in 1870. Theaters and saloons sprang up,  and more restaurants opened. Entertainment venues opening in Cleveland included the Playhouse Square Center, Palace Theatre, Ohio Theatre, State Theatre, and the Karamu House. Langston Hughes grew up in Cleveland and developed many of his plays at the Karamu House. In Columbus they opened the Southern Theatre in 1894, as well as their own Palace Theatre and Ohio Theatre, which hosted performers such as Jack Benny, Judy Garland, and Jean Harlow. The Lincoln Theatre hosted performers like Count Basie. The Taft Theatre opened in 1928 in Cincinnati.
The Roaring Twenties brought prohibition, bootlegging and speakeasies to the state, as well as the swing dance culture.  Cincinnati became the headquarters of the "king of bootlegging" George Remus, who made $40 million by the end of 1922.  The Anti-Saloon League had been powerful and Ohio, and the Women's Christian Temperance Union was still headquartered there; the Ku Klux Klan was active in the 1920s. However these organizations steadily lost influence after 1925.
Perhaps the biggest invention in Ohio and the US was the invention of flight by Dayton's Orville and Wilbur Wright. Starting this invention in their bike shop in what is now Dayton's west side, the Wright's brought flight to the world in Kitty Hawk, North Carolina. The brothers gained the mechanical skills essential to their success by working for years in their Dayton, Ohio-based shop with printing presses, bicycles, motors, and other machinery. Their work with bicycles in particular influenced their belief that an unstable vehicle such as a flying machine could be controlled and balanced with practice. From 1900 until their first powered flights in late 1903, they conducted extensive glider tests that also developed their skills as pilots. Their shop employee Charlie Taylor became an important part of the team, building their first airplane engine in close collaboration with the brothers. The very first airplane passenger was the Wright's own mechanic, Charles Furnas of West Milton, Ohio.
During the 1930s, the Great Depression struck the state hard. American Jews watched the rise of the Third Reich with apprehension. Cleveland residents Jerry Siegel and Joe Shuster created the Superman comic character in the spirit of the Jewish golem. Many of their comics portrayed Superman fighting and defeating the Nazis.  
Artists, writers, musicians and actors developed in the state and often moved to other cities which were larger centers for their work. They included Zane Grey, Milton Caniff, George Bellows, Art Tatum, Roy Lichtenstein, and "king of the cowboys" Roy Rogers. Alan Freed, who emerged from the swing dance culture in Cleveland, hosted the first live rock 'n roll concert in Cleveland in 1952. Famous filmmakers include Steven Spielberg, Chris Columbus and the original Warner Brothers, who set up their first movie theatre in Youngstown, OH before that company later relocated to California. The state produced many popular musicians, including Dean Martin, Doris Day, The O'Jays, Marilyn Manson, Dave Grohl of Nirvana and Foo Fighters fame, Divo[ disambiguation needed], Macy Gray and The Isley Brothers.
The NFL was originally founded in Ohio and the state has since given us many famous stars across various sports. Other famous individuals- native Ohioans and those who were just later associated with the state- include Annie Oakley, Clarence Darrow, Thomas Edison, Niel Armstrong and less beloved figures, like President William McKinley and General George Custer.
During the Civil War (1861–65) Ohio played a key role in providing troops, military officers, and supplies to the Union army. Due to its central location and burgeoning population, Ohio was both politically and logistically important to the war effort. Despite the state's boasting a number of very powerful Republican politicians, it was divided politically. Portions of Southern Ohio followed the Peace Democrats under Clement Vallandigham and openly opposed President Lincoln's policies. Ohio played an important part in the Underground Railroad prior to the war, and remained a haven for escaped and runaway slaves during the war years. 
The third most populous state in the Union at the time, Ohio raised nearly 320,000 soldiers for the Union army, third behind only New York and Pennsylvania. Nearly 7,000 Buckeye soldiers were killed in action.  Several leading generals were from the state, including Ulysses S. Grant, William T. Sherman, and Philip H. Sheridan.
Its most significant Civil War site is Johnson's Island, located in Sandusky Bay of Lake Erie. Barracks and outbuildings were constructed for a prisoner of war depot, intended chiefly for officers. Over three years more than 15,000 Confederate men were held there. The island includes a Confederate cemetery where about 300 men were buried. 
Camp Chase Prison was a Union Army prison in Columbus. There was a plot among prisoners to revolt and escape in 1863. The prisoners expected support from Copperheads and Vallandigham, but never did revolt. 
Ohio has been involved in regional, national, and global wars since statehood, and veterans have been a powerful social and political force at the local and state levels. The organization of Civil War veterans, the Grand Army of the Republic, was a major player in local society and Republican politics in the last third of the 19th century. The American Veterans of Foreign Service was established in 1899 in Columbus, ultimately becoming known as the Veterans of Foreign Wars in 1913. The state has produced 319 Medal of Honor recipients,  including the country's first recipient, Jacob Parrott.
In 1886, the state authorized the creation of the Ohio Veterans Home in Sandusky and a second one created in 2003 in Georgetown to provide for soldiers facing economic hardship. Over 50,000 veterans have lived at the Sandusky location as of 2005.  Since World War I, the state has paid stipends to veterans of wars, including in 2009, authorizing funds for soldiers of the Gulf and Afghanistan wars.  The state also provides free in-state tuition to any veteran regardless of state origin at their colleges. 
In 1820, the legislature then passed legislation which nullified the federal court order as well as the operations of the Bank of the United States within their borders.  The state ignored further federal court orders, writs, and denied immunities to the federal government.  Their actions were considered the complete destruction of federal standing in the state and an attempted overthrow of the federal government.  Ohio forcefully applied their iron law against the federal government until 1824, when the United States Supreme Court ruled they had no authority to tax the federal bank in the landmark case originating from the state: Osborn v. Bank of the United States. They then followed by passing an act in 1831 to withdraw state protections for the Bank of the United States. 
Although the nullification of 1820 in Ohio was inspired by resolutions passed in Virginia and Kentucky in 1798 and 1800, the language of their resolution from 1820 would find its place in South Carolina's nullification of 1832 and secession articles of southern states in 1861.  
The rebellion of 1820 firmly rooted the tradition of sovereignty in the state. In 1859, Governor Salmon P. Chase reaffirmed that tradition, stating: "We have rights which the Federal Government must not invade — rights superior to its power, on which our sovereignty depends; and we mean to assert those rights against all tyrannical assumptions of authority."  Following the War of the Rebellion, the debate over ratification of the Reconstruction Amendments reignited the sovereignty movement in Ohio. General Durbin Ward stated: "Fellow citizens of Ohio, I boldly assert that the States of this Union have always had, both before and since the adoption of the Constitution of the United States, entire sovereignty over the whole subject of suffrage in all its relations and bearings. Ohio has that sovereignty now, and it cannot be taken from her..." 
As recently as 2009, the tradition re-emerged, with an Ohio sovereignty resolution  passing in the state senate,  and signatures being collected to place a state sovereignty amendment on the ballot in 2011. 
Ohio's roots as an anti-slavery and abolitionist state go back to its territorial days in the Northwest Territory, which forbade the practice. When it became a state, the constitution expressly outlawed slavery.  Many Ohioans were members of anti-slavery organizations, including the American Anti-Slavery Society and American Colonization Society.  Ohioan Charles Osborn published the first abolitionist newspaper in the country, The Philanthropist, and in 1821, the father of abolition Benjamin Lundy began publishing his newspaper the Genius of Universal Emancipation. 
Ohio was a key stop on the Underground Railroad where prominent abolitionists played a role, including John Rankin. Ohio resident Harriet Beecher Stowe wrote the famous book Uncle Tom's Cabin, which was largely influential in shaping the opinion of the north against slavery.
As a closely contested state, Ohio was the top choice of Republicans, and often also as Democrats, for place on the national ticket as candidate for president or vice president.
Between Lincoln and Hoover, every Republican president who did not gain the office by the death of his predecessor was born in Ohio; Ulysses Grant, although born in Ohio, was legally a residence of Illinois when he was elected. 
By electing so many of her sons to the presidency, Ohio gained a role in politics disproportionate to its size. Several reasons came together. Ohio was a microcosm of the United States, balanced closely between the parties, and at the crossroads of America: between the South, the Northeast, and the developing West, and influenced by each. Its ethnic, religious, and cultural elements were a microcosm of the North. Its cutthroat politics trained candidates in how to win. A leading Ohio politician was "Available"—that is, well-suited and electable. Thus, in most presidential years, the governor of Ohio was deemed more available than the governor of the larger states of New York or Pennsylvania. 
This legend built on itself as the state sent seven men to the White House and four more became vice president. Many others won major patronage plums. Between 1868 and 1924, not only did Ohio supply the most presidents, it supplied the most Cabinet members, and the most federal officeholders. Ohio-born Rutherford B. Hayes (1876), James A. Garfield (1880) and Benjamin Harrison (1888) were each nominated from a convention that had deadlocked, and where the delegates chose to turn to a candidate who could carry Ohio. In each case they did, and won the presidency. According to historian Andrew Sinclair, "the potency of the Ohio myth gave its favorite sons a huge advantage in a deadlocked convention". 
The Progressive Era brought about change in the state, although the state had been at the forefront of the movement decades before. In 1852, Ohio passed its first child labor laws, and in 1885 adopted prosecution powers for violations.  In 1886, the American Federation of Labor was formed in Columbus, culminating in the passage of workers' compensation laws by the early 20th century. 
Victoria Woodhull, the first female candidate for U.S. president in 1872, and U.S. Second Lady Cornelia Cole Fairbanks, credited with paving the way for the modern American female politician, were leaders in the women's suffrage movement. Ohio was the second state to hold a women's rights convention, the Ohio Women's Convention at Salem in 1850.  The public voted on women's suffrage in 1912, which failed, but the state ultimately adopted the 19th amendment in 1920. Ohio-native and U.S. President William Howard Taft signed the White-Slave Traffic Act in 1910, which sought to end human trafficking and the sex slave trade.
In 1912 a Constitutional Convention was held with Charles Burleigh Galbreath as Secretary. The result reflected the concerns of the Progressive Era. The constitution introduced the initiative and the referendum, and provided for the General Assembly to put questions on the ballot for the people to ratify laws and constitutional amendments originating in the Legislature. Under the Jeffersonian principle that laws should be reviewed once a generation, the constitution provided for a recurring question to appear every 20 years on Ohio's general election ballots. The question asks whether a new constitutional convention is required. Although the question has appeared in 1932, 1952, 1972, and 1992, the people have not found the need for a convention. Instead, constitutional amendments have been proposed by petition and the legislature hundreds of times and adopted in a majority of cases.
In the early 1920s the Ku Klux Klan attracted thousands of Protestant men into membership, warning of the need to purify America, especially against the influence of Catholics, bootleggers, and corrupt politicians. The Klan collapsed and virtually[ clarification needed] disappeared in Ohio after 1925. 
Ohio was hit especially hard by the Great Depression in the 1930s. In 1932, unemployment for the state reached 37.3%. By 1933, 40% of factory workers and 67% of construction labor were unemployed.  The state had previously supported Franklin D. Roosevelt in 1932, 1936, 1940, but his policies had grown out of favor with the state and they voted against him in 1944.
Ohio played a major role in World War II, especially in providing manpower, food, and munitions to the Allied cause. Ohio manufactured 8.4 percent of total United States military armaments produced during World War II, ranking fourth among the 48 states. 
Ohio became heavily anti-Communist during the Cold War following World War II. Time Magazine reported in 1950 that police officers in Columbus were warning youth clubs to be suspicious of communist agitators.  Campbell Hill in Bellefontaine became the site of a main U.S. Cold War base and a precursor to NORAD. Anti-communist personalities emerged from the state, including Janet Greene of Columbus, the political right's answer to Joan Baez. Her songs included "Commie Lies", "Poor Left Winger", and "Comrade's Lament".  Ohio was the scene of the Kent State Massacre, where four anti-Vietnam war protesters, part of a charging mob, were shot dead, by badly frightened and poorly trained guardsmen. As the cold war wrapped up, Ohio heavily supported the elections of U.S. President Ronald Reagan and his peace-work contributions toward ending the conflict, who is the name-bearer of a highway in the Cincinnati area.
Ohio became an industrial magnet in the 1950s. By 1960, 10% of the population had been born in nearby Kentucky, West Virginia or Tennessee. 
The Ohio Un-American Activities Committee was a government agency which existed to collect information on citizens with communist sympathies,  resulting in 15 convictions, 40 indictments, and 1,300 suspects. Governor Frank Lausche generally opposed the committee, but his vetoes were overridden by the legislature.  The state forced their employees to sign a loyalty oath, promising "to defend the state against foreign and domestic enemies", in order to receive a paycheck. Professors and Holocaust survivors Bernhard Blume and Oskar Seidlin were among those required to take the oath.  Ohio barred communists from receiving unemployment benefits. 
Ohioans have supported movie making. Five Academy Award-winning films of the late 20th century were partly produced in the state, including The Deer Hunter, Rain Man, Silence of the Lambs, Terms of Endearment, and Traffic.
In the 21st century, Ohio remains connected to the regional, national, and global economies. According to U.S. Census Bureau statistics, the foreign-born share of Ohio's population increased from 2.4% in 1990, to 3.0% in 2000, to 4.1% in 2013.  As of 2015, 49.7% of immigrants to Ohio had become naturalized U.S. citizens.  Immigrants have substantial economic importance to Ohio, as taxpayers, entrepreneurs, consumers, and workers.   A 2016 study on immigrants in Ohio concluded that immigrants make up 6.7% of all entrepreneurs in Ohio although they are just 4.2% of Ohio's population, and that these immigrant-owned businesses generated almost $532 million in 2014. The study also showed that "immigrants in Ohio earned $15.6 billion in 2014 and contributed $4.4 billion in local, state and federal taxes that year." 
In 2015, Ohio gross domestic product (a broad measure of the size of the economy) was $608.1 billion, the seventh-largest economy among the 50 states.  In 2015, Ohio's total GDP accounted for 3.4% of U.S. GDP and 0.8% of world GDP.  Ohio's GDP per capita in 2015 was $52,363, ranked 26th among the states in GDP per capita.  From 2005 to 2015, " Ohio's economy grew more slowly than the U.S. as a whole, growing at an average nominal (i.e., not inflation-adjusted) annual rate of 2.6%, compared to the U.S. average annual growth rate of 3.2% over the same time period.  From 2000 to 2016, "the pace of employment growth in Ohio has trailed the national pace..., except for the three-year period between 2010 and 2013." 
Ohio had become nicknamed the "fuel cell corridor"  in being a contributing anchor for the region now called the "Green Belt," in reference to the growing renewable energy sector.  Although the state experienced heavy manufacturing losses around the start of the 20th century and suffered from the Great Recession, it was rebounding by the second decade in being the country's 6th-fastest-growing economy through the first half of 2010.  Politically the state has demonstrated its importance in modern presidential elections, signed international cooperation treaties with foreign provinces and northern American states, has become involved in heated national disputes with southern American states, while producing national leadership. Its athletic teams are among some of the nation's best, and culturally the state continues to produce notable artists while building institutions enshrining its past. Educationally the schools are among the nation's top performers, and militarily Ohio's legacy continues into the present era.
Ohio's transition into the 21st century is symbolized by the Third Frontier program, spearheaded by Governor Bob Taft around the start of the 20th century. This built on the agricultural and industrial pillars of the economy, the first and second frontiers, by aiding the growth of advanced technology industries, the third frontier.  It has been widely hailed as one of the nation's most successful government bureaucracies,  attracting 637 new high-tech companies to the state and 55,000 new jobs, with an average of salary of $65,000,  while having a $6.6 billion economic impact with an investment return ratio of 9:1.  In 2010 the state won the International Economic Development Council's Excellence in Economic Development Award, celebrated as a national model of success. 
The state's cities have become hubs of modern industry, including Toledo's recognition as a national solar center,   Cleveland a regenerative medicine research hub,  Dayton an aerospace and defense hub, Akron the rubber capital of the world, Columbus a technological research and development hub,  and Cincinnati a mercantile hub.  Ohio was hit hard by the Great Recession and manufacturing employment losses during the most recent period. The recession cost the state 376,500 jobs  and it had 89,053 foreclosures in 2009, a record for the state.  The median household income dropped 7% and the poverty rate ballooned to 13.5% by 2009.  By the second half of 2010, the state showed signs of rebound in being the nation's sixth-fastest-growing economy. 
During the 2000 and 2004 presidential elections, the state was at the center of the political world as a key battleground which in the elections of U.S. President George W. Bush. U.S. House Minority Leader John Boehner of southwestern Ohio became a national political leader.[ citation needed]
Beginning in the 1980s, the state entered into international economic and resource cooperation treaties and organizations with other Midwestern states, New York, Pennsylvania, Ontario, and Quebec, including the Great Lakes Charter, Great Lakes Compact, and the Council of Great Lakes Governors. It became involved in heated national disputes with southern American states in 2009 and 2010, including Georgia over National Cash Register Company and Alabama over Wright Patterson Air Force Base, where southern lawmakers were accused of misusing federal funds and influence to "steal" Ohio jobs during the Great Recession.  
Athletically, the state's teams are among some of the nation's best. The Ohio State University football team won the national championship in 2002 and 2014, and consistently competes for the prize annually. The Cincinnati Reds won the World Series championship in 1990 following their run as the Big Red Machine in the 1970s, as well as the National League Central Division champions in 2010 and 2012, while the Cincinnati Bengals appeared in the Super Bowl in 1981 and 1988 and have won the AFC North Division in 2005, 2009, 2013, and 2015. In 2016 the Cleveland Cavaliers won the NBA Finals, in 2007 won the Eastern Conference Championship, and in 2009 and 2010 won the NBA Central Division championships. The Columbus Quest won the only two league championships in history in the 1990s, while the Ohio State University men's basketball team advanced to the NCAA Final Four and national championship game in 2007.[ citation needed]
In 1995 the Rock 'n Roll Hall of Fame museum opened in Cleveland, commemorating Ohio's contributory past to the art, including being the location of the first live rock 'n roll concert in 1952.
Ohio has six of the top 146 public school national universities in the nation, according to U.S. News and World Report's 2020 rankings.  In 2008 it was ranked 8th by the same magazine for best high schools.  Overall, in 2010 the state's schools were ranked 5th in the country by Education Week. 
Militarily, Ohio's legacy continues into the modern era. It has contributed over 200,000 soldiers to the Gulf, Afghanistan, and Iraq wars. 
- City timelines
- Andrew R. L. Cayton. Ohio: The History of a People (2002)
- Knepper, George W. Ohio and Its People. Kent State University Press, 3rd edition 2003, ISBN 0-87338-791-0 (paperback)
- Wittke, Carl, ed. History of Ohio 5 vol
- Bond, Beverley W., Jr.; The Foundations of Ohio. Volume: 1. 1941. detailed history to 1802. online
- Jordan, Philip D.Ohio Comes of Age: 1873–1900 Volume 5 (1968) online
- Roseboom, Eugene. The Civil War Era, 1850–1873, vol. 4 (1944) online
- Utter, William T. The Frontier State 1803–1825, vol 2 online
- Weisenburger, Francis P. The Passing of the Frontier, vol. 3 (1941), detailed history of the 1830s and 1840s online
- "Timeline of Ohio" 
- Blue, Frederick J. Salmon P. Chase: A Life in Politics (1987)
- Booth, Stephane Elise. Buckeye Women: The History of Ohio's Daughters (2001) [ online review]
- Buley, R. Carlyle. The Old Northwest (1950), Pulitzer Prize winner
- Booraem V. Hendrick. The Road to Respectability: James A. Garfield and His World, 1844–1852 Bucknell University Press (1988)
- Coffey, by Daniel J. Buckeye Battleground: Ohio, Campaigns, and Elections in the Twenty-First Century (University of Akron Press; 2011) 210 pages; studies the politics of five distinct regions in the state, esp. the 2004 and 2008 presidential elections and the 2006 gubernatorial campaign.
- Hurt, R. Douglas. The Ohio Frontier: Crucible of the Old Northwest, 1720–1830. Bloomington, Indiana: Indiana University Press, 1996. ISBN 0-253-33210-9 (hardcover); ISBN 0-253-21212-X (1998 paperback).
- Jensen, Richard. The Winning of the Midwest: Social and Political Conflict, 1888–1896 (1971)
- Maizlish, Stephen E. The Triumph of Sectionalism: The Transformation of Ohio Politics, 1844–1856 (1983)
- Miller, Richard F. States at War, Volume 5: A Reference Guide for Ohio in the Civil War (2015).
- O'Donnell, James H. Ohio's First Peoples. Athens, Ohio: Ohio University Press, 2004. ISBN 0-8214-1525-5 (paperback), ISBN 0-8214-1524-7
- Parker, Geoffrey Parker, Richard Sisson, and William Coil, eds. Ohio and the world, 1753–2053: essays toward a new history of Ohio (2005)
- Ratcliffe, Donald J. The Politics of Long Division: The Birth of the Second Party System in Ohio, 1818–1828. Ohio State U. Press, 2000.
- Rodabaugh, James H. "The Negro in Ohio," Journal of Negro History, Vol. 31, No. 1 (Jan., 1946), pp. 9–29 in JSTOR
- Sisson, Richard, ed. The American Midwest: An Interpretive Encyclopedia (2006)
- Van Tassel, David D., and John J. Grabowski, eds. The Encyclopedia of Cleveland History (1987), also online
- Van Tassel, David D., and John J. Grabowski, eds. Cleveland: A Tradition of Reform (1986)
- Wheeler, Kenneth H. "Local Autonomy and Civil War Draft Resistance: Holmes County, Ohio" Civil War History, Vol. 45, 1999
- Tom L. Johnson. My Story Kent State University Press, 1993
- Phillip R. Shriver, Jr. and Clarence E. Wunderlin. eds. Documentary Heritage Of Ohio (2001)
- "Research reveals first evidence of hunting by prehistoric Ohioans". Cleveland Museum of Natural History. February 2012. Archived from the original on May 14, 2012. Retrieved April 12, 2012.
- Nash, Gary B. Red, White and Black. Los Angeles 2015. Chapter 1, p. 6
- Josephy, Alvin M., ed. (1961). The American Heritage Book of Indians. American Heritage Publishing, Co., Inc. LCCN 61-14871.
- The Jesuit Relations... 1610-1791, Creighton University, accessed January 20, 2009
- Downes, Randolph C. Council Fires on the Upper Ohio: A Narrative of Indian Affairs in the Upper Ohio Valley until 1795. Pittsburgh: University of Pittsburgh Press, 1940. ISBN 0-8229-5201-7 (1989 reprint).
- Hirchefekder, Arlene and Paulette Molin. Encyclopedia of Native American Religions. Checkmark Books.
- The Ohio Country, p. 1.
- Stoetzel, Donald I. (August 17, 2017). "Encyclopedia of the French & Indian War in North America, 1754–1763". Heritage Books. p. 371. Retrieved August 17, 2017 – via Google Books.
- "Ohio History". August 17, 1890. pp. 301–302. Retrieved August 17, 2017 – via Google Books.
- The great frontier war: Britain, France, and the imperial struggle for North America, 1607–1755, p. 177
- The last French Fort in Ohio Country, Fort Sandusky, was destroyed in 1763 during Pontiac's Rebellion.
- Milo Milton Quaife, "The Ohio Campaigns of 1782." Mississippi Valley Historical Review (1931): 515–529. in JSTOR
- Rob Harper, "Looking the other way: the Gnadenhutten massacre and the contextual interpretation of violence." William and Mary Quarterly (2007): 621–644. in JSTOR
- Kip Sperry, Genealogical Research in Ohio, Genealogical Publishing, 2003, p.2
- Leonard Peacefull (1996). A Geography of Ohio. Kent State University Press. p. 89.
- Harlan Hatcher, The Western Reserve: The Story of New Connecticut in Ohio (1949)
- Downes, Randolph. "OHIO'S SQUATTER GOVERNOR: WILLIAM HOGLAND OF HOGLANDSTOWN". Ohio History Journal. Ohio History Connection.
- Smith and Vining, American Geographers, 1784–1812, 197.
- Hulbert, Proceedings of the Ohio Company, Volume I, 26.
- Hildreth, Pioneer History, 206.
- Hulbert, Proceedings of the Ohio Company, Volume I, 24.
- Cutler, Founders of Ohio, 15–17.
- "Lewiston Evening Journal – Google News Archive Search". news.Google.com. Retrieved August 17, 2017.
- The expansion of New England: the spread of New England settlement and institutions to the Mississippi River, 1620–1865 by Lois Kimball Mathews page 175
- Hildreth, Early Pioneer Settlers of Ohio, 237.
- Ohio Division of Forestry, Ohio...The Buckeye State, brochure.
- Goodman and Brunsman, This Day in Ohio History, 54.
- "Why is Ohio known as the Buckeye State and why are Ohioans known as "Buckeyes"?" (PDF). Archived from the original (PDF) on April 28, 2008. Retrieved April 28, 2008.
- "Removal Era", accessed September 8, 2010
- Thrower. "Casualties and Consequences of the Creek Civil War." in Rethinking Tohopeka, 12.
- Indian Myths, Elsey Connelley, William pg 60
- "History of Ohio Steelmaking". OhioSteel.org. Archived from the original on July 25, 2010. Retrieved August 17, 2017.
- "Early Industrialization – Ohio History Central". www.OhioHistoryCentral.org. Retrieved August 17, 2017.
- Parker, Geoffrey; Sisson, Richard; Coil, William Russell (August 17, 2017). "Ohio and the World, 1753–2053: Essays Toward a New History of Ohio". Ohio State University Press. pp. 98–99. Retrieved August 17, 2017 – via Google Books.
- Rose, William Ganson (August 17, 1990). "Cleveland: The Making of a City". Kent State University Press. p. xiii. Retrieved August 17, 2017 – via Google Books.
- Ohio: the history of a people, p. 180
- "National History Day in Ohio 2009–2010 Innovation In History" (PDF). OhioHistory.org. Archived from the original (PDF) on August 3, 2009. Retrieved August 17, 2017.
- "Railroads – Ohio History Central". OhioHistoryCentral.org. Retrieved August 17, 2017.
- "Public Education – Ohio History Central". www.OhioHistoryCentral.org. Retrieved August 17, 2017.
- State, Ohio Auditor of (August 17, 2017). "Annual Report". pp. 29–30. Retrieved August 17, 2017 – via Google Books.
- New Englanders on the Ohio Frontier: Migration and Settlement of Worthington, p. 250
- Timothy L. Smith, "The Ohio Valley: Testing Ground for America's Experiment in Religious Pluralism", Church History, December 1991, Vol. 60 Issue 4, pp 461–479, in JSTOR
- Paul Boyer, "An Ohio Leader of the Social Gospel Movement," Ohio History, August 2009, Vol. 116, pp 88–100
- The Magazine of American history with notes and queries, Volume 16, p. 526-529
- The expansion of New England: the spread of New England settlement and institutions to the Mississippi River, 1620–1865, p. 193-194
- Howe, Henry (1907). "Union County". Historical Collections of Ohio. 3. The State of Ohio. p. 395.
- Coggeshall, William T (1860). "Otway Curry". Poets and Poetry of the West with Biographical and Critical Notices. Columbus: Follett, Foster and Company. pp. 88–108.
- Ginette Aley, "A Republic of Farm People: Women, Families, and Market-Minded Agrarianism in Ohio, 1820s–1830s," Ohio History, (2007) 114#1 pp 28–45, online
- "Linguistic Geography of Pennsylvania". www.Evolpub.com. Retrieved August 17, 2017.
- Boeree, C. George. "Dialects of English". webspace.Ship.edu. Retrieved August 17, 2017.
- The American Midwest: an interpretive encyclopedia, p. 228–231
- Eichholz, Alice (August 17, 2017). "Red Book: American State, County & Town Sources". Ancestry Publishing. p. 520. Retrieved August 17, 2017 – via Google Books.
- Colby, Frank Moore; Churchill, Allen Leon (1913). The New International Year Book. Dodd, Mead and Company. p. 322. Retrieved August 17, 2017 – via Internet Archive.
- Josef Barton, Immigration and Social Mobility in an American City: Studies of Three Ethnic Groups in Cleveland 1890–1950 (1971)
- Ehrlich, David A.; Minton, Alan R.; Stoy, Diane (August 17, 2017). "Smokey, Rosie, and You!: The History and Practice of Marketing Public Programs". Track Center for Marketing Public Programs. p. 33. Retrieved August 17, 2017 – via Google Books.
- "Welcome < Swing Dance Club at Ohio State". osu.SwingColumbus.com. Archived from the original on March 13, 2012. Retrieved August 17, 2017.
- Morris, Jeff; Morris, Michael A. (August 17, 2017). "Haunted Cincinnati and Southwest Ohio". Arcadia Publishing. p. 66. Retrieved August 17, 2017 – via Google Books.
- Bytwerk, Randall. "The SS and Superman". www.Calvin.edu. Retrieved August 17, 2017.
- "The religion of Superman (Clark Kent / Kal-El)". www.Adherents.com. Retrieved August 17, 2017.
- Robert S. Harper, Ohio Handbook of the Civil War (Ohio Historical Society, 1961), pp. 4–15.
- Whitelaw Reid, Ohio in the War: Her Statesmen, Her Generals, and Soldiers (1868) Vol. 1, p. 160;
- Dee A. Brown, Morgan's Raiders. New York : Konecky & Konecky, 1959.
- "Johnson's Island Preservation Society". JohnsonsIsland.org. Archived from the original on August 3, 2012. Retrieved August 17, 2017.
- Angela M. Zombek, "Camp Chase Prison," Ohio History, (2011) 118#1 pp 24–48
- "About the Medal of Honor and Ohio Recipients". OhioHistory.org. Archived from the original on March 1, 2012. Retrieved August 17, 2017.
- "Ohio Veterans Home – Ohio History Central". OhioHistoryCentral.org. Retrieved August 17, 2017.
- "State makes final push for Ohio Veterans bonus". Dayton Daily News. January 13, 2014.
- "Stateline". PewTrusts.org. Retrieved August 17, 2017.
- Cyclopaedia of political science, political economy, and of the political history of the United States, p. 1050
- Ohio Archæological and Historical Quarterly. Society. August 17, 1888. p. 413. Retrieved August 17, 2017 – via Internet Archive.
- The century illustrated monthly magazine, Volume 37, p. 873
- Ohio archæological and historical quarterly, Volume 2, p. 413–420.
- Ohio history, Volume 2, p. 421
- The Democratic party: a political study, p. 61
- The life of Rutherford Birchard Hayes: nineteenth president of the United States, Volume 1, p. 359
- "Laws, Acts, and Legislation". archives.legislature.state.oh.us. Retrieved August 17, 2017.
- "Ohio Senate Asserts State Sovereignty". WCPN.org. Archived from the original on September 27, 2011. Retrieved August 17, 2017.
- "Sovereignty amendment won't be on Nov. 2 ballot". Dispatch.com. June 23, 2010. Archived from the original on July 24, 2012. Retrieved August 17, 2017.
- "Ohio Constitution". OhioLink.edu. Retrieved August 17, 2017.[ permanent dead link]
- "Abolitionists – Ohio History Central". www.OhioHistoryCentral.org. Retrieved August 17, 2017.
- "U.S. Presidents Birth and Death Information". CB Presidential Research Service. Retrieved May 30, 2015.
- Sinclair 1965, pp. 28–30.
- Sinclair, Andrew (1965). The Available Man: The Life behind the Masks of Warren Gamaliel Harding. pp. 28–30.CS1 maint: ref=harv ( link)
- Annals of the American Academy of Political and Social Science, Volume 25, p. 472
- The Ohio State Constitution: a reference guide, p. 152
- Wellman, Judith (2008). "The Seneca Falls Women's Rights Convention and the Origin of the Women's Rights Movement", pp. 15, 84. National Park Service, Women's Rights National Historical Park. Wellman is identified as the author of this document here . The first two women's rights conventions were the Seneca Falls Convention and the Rochester Convention, both held in 1848 in western New York.
- "Ku Klux Klan – Ohio History Central". www.OhioHistoryCentral.org. Retrieved August 17, 2017.
- "Category:Great Depression and World War II – Ohio History Central". www.OhioHistoryCentral.org. Retrieved August 17, 2017.
- Peck, Merton J. & Scherer, Frederic M. The Weapons Acquisition Process: An Economic Analysis (1962) Harvard Business School p. 111
- "Communists: Boiling Over". July 31, 1950. Retrieved August 17, 2017 – via www.Time.com.
- Luhr, Eileen (February 10, 2009). "Witnessing Suburbia: Conservatives and Christian Youth Culture". University of California Press. p. 39. Retrieved August 17, 2017 – via Google Books.
- Vance, J.D. (2001). Hillbilly Elegy. New York City: Harper Collins. p. 28. ISBN 978-0-06-230054-6.
- "Korean War – Ohio History Central". www.OhioHistoryCentral.org. Retrieved August 17, 2017.
- "Cold War – Ohio History Central". www.OhioHistoryCentral.org. Retrieved August 17, 2017.
- Goethe in German-Jewish culture, p. 133
- A conspiracy so immense: the world of Joe McCarthy, p. 140
- Fact Sheet: New Americans in Ohio: The Political and Economic Power of Immigrants, Latinos, and Asians in the Buckeye State, American Immigration Council (January 1, 2015).
- Encarnacion Pyle, Report: Foreign-born workers important to Ohio, U.S. economy, Columbus Dispatch (August 4, 2016).
- Ohio Facts 2016: Ohio's Economy Ranks 7th Largest Among States Archived January 31, 2017, at the Wayback Machine, Ohio Legislative Service Commission.
- "Ohio Fuel Cell Symposium 2010". GCBL.org. 2010. Archived from the original on July 26, 2011. Retrieved August 17, 2017.
- Woody, Todd (November 23, 2009). "Solar energy industry brings a ray of hope to the Rust Belt". Retrieved August 17, 2017 – via LA Times.
- "Biden flies to Akron to help governor". Ohio.com. Retrieved August 17, 2017.
- "Ohio Third Frontier – History". Ohio.gov. Archived from the original on October 6, 2010. Retrieved August 17, 2017.
- "Ohio can't afford to kill Third Frontier: Brent Larkin". Cleveland.com. Retrieved August 17, 2017.
- Coalition, Ohio Business Development. "Ohio Third Frontier Continues to Create Jobs and Opportunities for Ohioans". www.PRNewswire.com. Retrieved August 17, 2017.
- "Ohio Third Frontier and Supporting Programs Win Top Tech Awards for Economic Development – Press Release – Digital Journal". www.DigitalJournal.com. Retrieved August 17, 2017.
- "Five cities that will rise in the New Economy", Christian Science Monitor. Retrieved November 27, 2009.
- "Ohio gov. declares NW Ohio a solar energy hub". ABCLocal.go.com. June 30, 2010. Archived from the original on July 6, 2010. Retrieved August 17, 2017.
- "Atlantic Eye: Brunner is the best for Ohio" Archived August 5, 2010, at the Wayback Machine, Marc S. Ellenbogen. May 3, 2010. Retrieved 5 May 2010.
- "Ohio has endured decade of job losses". Dispatch.com. September 12, 2010. Archived from the original on October 5, 2010. Retrieved August 17, 2017.
- Grzegorek, Vince (May 20, 2010). "We're Number One: Cuyahoga Leads Ohio Foreclosures... Again". CleveScene.com. Retrieved August 17, 2017.
- "Ohio's poverty, uninsured rates up; median income drops sharply". Cleveland.com. September 2010. Retrieved August 17, 2017.
- "OUR VIEW: Alabama trying to steal jobs from region". WNewsj.com. Retrieved August 17, 2017.
- Ohio Lawmakers Question NCR Move Archived October 5, 2010, at the Wayback Machine
- "Top Public Schools National Universities". U.S. News & World Report. 2020. Retrieved May 4, 2020.
- "Best High Schools: State by State Statistics", U.S. News & World Report, Retrieved December 2, 2009.
- "State Report Cards", Education Week, Retrieved February 20, 2010.
- "Bonuses now available to Persian Gulf, Iraq, Afghanistan veterans". News-Herald.com. August 25, 2010. Retrieved August 17, 2017.
- Federal Writers' Project (1940), "Chronology", Ohio Guide, American Guide Series, New York: Oxford University Press – via Google Books
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