Abigail Adams proved a peerless patriot in the American Revolution with "a spirit that will not be conquered" while championing rights for women in the new nation.
John Froelich, the oldest son of German immigrants, was born in Iowa in 1849. The grain mill operator tinkered away on a gasoline traction, the tractor, that changed global agriculture.
The Kentucky Derby debuted in 1875, the horse race a vision of Meriwether Lewis Clark Jr., grandson of American explorer William Clark in hopes of reviving commonwealth's economy.
Walter Diemer, a 23-year-old accountant for Fleer Co. of Philadelphia, invented bubble gum in 1928. The secret formula had defied the best food scientists for decades.
Otto Rohwedder of Davenport, Iowa, created the invention by which all others are judged โ sliced bread โ in 1928. His innovation quickly changed consumer culture.