1794

Eli Whitney received a patent for his cotton gin, an invention that revolutionized the American cotton industry.

1879

Albert Einstein, who would revolutionize physics and the human understanding of the universe, was born in Ulm, Germany.

1967

The body of President John F. Kennedy was moved from a temporary grave to a permanent memorial site at Arlington National Cemetery in Virginia.

1973

Future U.S. senator and presidential candidate John McCain was released from North Vietnamese captivity after being held as a prisoner of war for over five years.