Between 1890 and 1920, 12 million people emigrated from Europe arriving in New York Harbor and Ellis Island.
In 1967, thousands of hippies flocked to San Francisco's Haight Ashbury district.
With data compiled from tens of thousands of sex questionnaires, Alfred Kinsey changed America's views about sex with the Kinsey Reports.
The story of the polio crusade pays tribute to a time when Americans banded together to conquer a terrible disease.
Between 1854 and 1929 more than 100,000 abused or orphaned children were sent by train to the Midwest to begin new lives in foster families.
P.T. Barnum -- huckster, con man, promoter, entertainer and founder of "The Greatest Show on Earth".
A daunting story of shipwreck, starvation, mutiny and cannibalism amongst a group left abandoned in the high Arctic.