Earl Tupper grew up dirt poor and never got beyond high school. Still, he dreamed of becoming a millionaire by the time he was 30, deciding his route to success would be inventing.
Earl fancied himself to be the next Thomas Edison or Henry Ford. He carried little pads of paper in his shirt pocket for scribbling down ideas. He elaborated on them in his invention notebooks, where he also jotted aphorisms and advice to himself. His crudely drawn ideas were, for the most part, improvements on everyday devices and gadgets.
Earl sent letters and prototypes to companies all over the country, hoping to sell his inventions. But they all said no. In spite of this, Earl continued to plug away. His knack for tinkering finally paid off when he invented the first Wonderbowl, with its famous burping seal.
Take a tour of Earl's invention notebooks.
John Scopes' free speech trial pitted science against religion after the teacher presented Charles Darwin's theory of evolution in a Tennessee school.
The most daring and innovative accomplishment at the turn of the 20th century.
A wry philosophical essay on what makes baseball the great American pastime.
Of all the alphabet agencies of the New Deal, none captured the public's imagination like J. Edgar Hoover's FBI.
A look at five real-life "Rosies," the reality of working in defense plants during World War II and then having to give up those jobs for returning GIs.
The country's oldest beauty contest has become a battleground and a barometer for the position of women in society.
The Pennsylvania Railroad Company accomplished an enormous engineering feat, but destroyed a great architectural monument.
A courageous band of civil rights activists called Freedom Riders who in 1961 challenged segregation in the American South.