The 1950s (pronounced nineteen-fifties; commonly abbreviated as the '50s or Fifties) was a decade of the Gregorian calendar that began on
January 1, 1950, and ended on December 31, 1959. By its end, the world had largely recovered from World War II and the Cold War developed from its modest beginning in the
late-1940s to a hot competition between the United States and the Soviet Union by the early-1960s. Clashes between communism and capitalism dominated the decade, especially
in the Northern Hemisphere. The conflicts included the Korean War in the beginnings of the decade and the beginning of the Space Race with the launch of Sputnik 1. Along with
increased testing of nuclear weapons (such as RDS-37 and Upshot–Knothole), this created a politically conservative climate. In the United States, the Second Red Scare caused
Congressional hearings by both houses in Congress and anti-communism was the prevailing sentiment in the United States throughout the decade. The beginning of decolonization
in Africa and Asia took place in this decade and accelerated in the following decade.