Ohio State University's Big Ear radio telescope detected a deep-space radio signal.
The first Wendy's restaurant opened in Columbus, Ohio, US.
The world's first rock and roll concert is held in Cleveland, Ohio.
Cleveland, Ohio, recorded its coldest March temperature at a bone-chilling -5°F.
Alcoholics Anonymous was founded in Akron, Ohio.
Robber John Dillinger stole $10,000 in his first robbery at a bank in New Carlisle, Ohio.
The Firestone Tire and Rubber Company started selling inflatable tires from Akron, Ohio.
Passenger Pigeons become extinct.
The first traffic lights in the US were installed in Cleveland, Ohio.
Firestone Tire and Rubber Company is founded.
John D. Rockefeller created Standard Oil Company in Cleveland, Ohio.
Barbed wire was patented by Lucien B Smith in Ohio, US.
Black women's rights activist Sojourner Truth gave her famous speech 'Ain't I A Woman?' at the Women's Rights Convention in Akron, Ohio.
Ohio became the 17th state to join the United States of America.
