Jack Ruby was charged with assassinating President John F. Kennedy, but doubts about his guilt linger.

When Alabama governor, George Wallace was ordered by federal marshals to stand aside from the doorway at the University of Alabama so that black students could enter, Wallace:

Senator Joseph McCarthy’s power began to unravel when he made reckless charges about Communists influence in 

Whitaker Chambers:

The bracero program:

Between 1945 and 1960, home ownership:

In 1961, Khrushchev escalated tensions over Berlin by:

The Cuban Missile crisis:

Whttaker Chambers accused Alger Hiss of supplying U.S. secret documents to the Soviets.

The Soviets acquition of the atomic bomb in 1949 inspired Truman to: