Cleveland, Ohio, recorded its coldest March temperature at a bone-chilling -5°F.
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John D. Rockefeller created Standard Oil Company in Cleveland, Ohio.
Ohio State University's Big Ear radio telescope detected a deep-space radio signal.
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.
The Firestone Tire and Rubber Company started selling inflatable tires from Akron, Ohio.
The first traffic lights in the US were installed in Cleveland, Ohio.
