P.T. Barnum -- huckster, con man, promoter, entertainer and founder of "The Greatest Show on Earth".
In September 1970, militants from the Popular Front for the Liberation of Palestine hijacked five commercial airplanes.
The Alabama governor and presidential candidate promised segregation forever.
Their intense faith and strict adherence to 300-year-old traditions have by turn captivated and repelled, awed and irritated, inspired and confused America.
With data compiled from tens of thousands of sex questionnaires, Alfred Kinsey changed America's views about sex with the Kinsey Reports.
Engineer James Eads tamed the mighty Mississippi, turning New Orleans into the second largest port in the nation.
A president who rose from a broken childhood to become one of the most successful politicians in modern American history, and one of the most complex and conflicted characters to ever stride across the public stage.