Brain › WorldWhen did Ohio become a state?March 1, 1803September 14, 1825November 3, 1815December 12, 1859AnswerThe correct answer is A) March 1, 1803.More World questionsHow many U.S. Presidents of the 19th and 20th century were born in Ohio?In which city is Ohio University located?What is the state bird of Ohio?What is Ohios nickname?Which of the two teams, established in Ohio in the 20th century, joined the NFL earlier?How many states border Ohio?Play Brain · Practice