Ohio has quietly shaped American history more than almost any other state, from the birth of powered flight to eight U.S. presidents connected to its soil. It's also home to Great Lakes shoreline, world-class amusement parks, and one of the largest Amish communities on Earth.
Here are 27 verified facts about the Buckeye State, covering its history, geography, culture, and famous native sons.
Ohio became the 17th U.S. state in 1803, the first state admitted to the Union that lies west of the Appalachian Mountains.
Ohio is closely tied to the birth of aviation: Orville Wright was born in Dayton in 1871, and he and his brother Wilbur (born in Millville, Indiana) grew up and worked in Dayton, where they designed and built the first successful powered airplane.
In 1969, pollution caused the Cuyahoga River in Cleveland to catch fire, an event that helped spur the modern environmental movement and the creation of the U.S. Environmental Protection Agency.
Cleveland is home to the Rock and Roll Hall of Fame, which celebrates the history and cultural impact of rock music.
The Cincinnati Red Stockings, established in 1869, are widely recognized as the first openly professional baseball team in the United States.
The Ohio State Fair has been held annually since 1850, showcasing the state's agriculture, industry, and entertainment.
Ohio is the birthplace of seven U.S. presidents: Ulysses S. Grant, Rutherford B. Hayes, James Garfield, Benjamin Harrison, William McKinley, William Howard Taft, and Warren G. Harding. An eighth, William Henry Harrison, was born in Virginia but spent most of his adult life in Ohio, which is why the state is sometimes called the "Mother of Presidents."
Hocking Hills State Park, in southeastern Ohio, is known for its waterfalls, hiking trails, caves, and dramatic sandstone rock formations.
Cedar Point amusement park in Sandusky, nicknamed the "Roller Coaster Capital of the World," features 18 roller coasters as of 2026.
Ohio has about 312 miles of coastline along Lake Erie, which is the fourth largest of the five Great Lakes by surface area and the 11th largest lake in the world by surface area.
Ohio is home to the largest Amish population in the United States, and Holmes County sits at the center of one of the largest Amish settlements in the world.
Ohio State University, founded in 1870, is one of the largest public universities in the country and a major research institution.
Goodyear Tire and Rubber Company was founded in Akron in 1898 and remains one of the world's largest tire manufacturers.
The Pro Football Hall of Fame is located in Canton, Ohio, honoring the greatest players, coaches, and contributors in professional American football history.
Serpent Mound, a prehistoric effigy earthwork in Adams County, is the largest surviving serpent-shaped mound in the world, stretching more than 1,300 feet long.
Tomato juice is Ohio's official state beverage, chosen in 1965 to honor the state's tomato production.
Ohio inventors have been credited with major innovations, including Garrett Morgan's traffic signal and James Ritty's cash register, both developed in the state.
The National Museum of the United States Air Force in Dayton is the oldest and largest military aviation museum in the world.
Cincinnati chili is a regional specialty made of a thin, meaty chili sauce served over spaghetti, often topped with cheese, onions, or beans.
The Ohio State Reformatory in Mansfield, a decommissioned 19th-century prison known for its castle-like architecture, was the filming location for "The Shawshank Redemption."
Astronaut and senator John Glenn, the first American to orbit the Earth, was born in Cambridge, Ohio, and grew up in New Concord.
Neil Armstrong, the first person to walk on the moon, was born in Wapakoneta, Ohio.
Akron's minor league baseball team, the RubberDucks, takes its name from the city's long history as a center of the rubber and tire industry.
The Toledo War was an early 19th-century border dispute between Ohio and the Michigan Territory; Congress resolved it in 1836 by awarding the Toledo Strip to Ohio while Michigan received the Upper Peninsula.
The Ohio River forms the state's southern border and is the largest tributary of the Mississippi River by volume, historically a vital route for transportation and trade.
Ohio's official state fossil is Isotelus, a genus of trilobite that lived in the region's ancient seas more than 440 million years ago.