Key Historical Events Mark August 20

From the Soviet invasion of Czechoslovakia to the first female members at Augusta National, August 20 is a date of significant historical milestones.

In 1968, Soviet forces invaded Czechoslovakia to end the Prague Spring liberalization movement.
Augusta National Golf Club admitted its first female members, Condoleezza Rice and Darla Moore, in 2012.
Charles Darwin's theory of evolution was first published in 1858.
The American Professional Football Conference, precursor to the NFL, was formed in 1920.
President Lyndon B. Johnson signed the Economic Opportunity Act into law in 1964.