Neolithic humans built stone tools and adapted to their changing environments. They had to continually move around to fine animals
September 14, 1814
On September 14, 1814, Francis Scott Key pens a poem which is later set to music and in 1931 becomes America's national anthem, “The Star-Spangled Banner.” The poem, originally titled “The Defence of Fort M'Henry,” was written after Key witnessed the Maryland fort being bombarded by the British during the War of 1812.
Détente (a French word meaning release from tension) is the name given to a period of improved relations between the United States and the Soviet Union that began tentatively in 1971 and took decisive form when President Richard M. Nixon visited the secretary-general of the Soviet Communist party, Leonid I. Brezhnev, in Moscow, May 1972.
As a result of World War II, Korea was liberated from Japan and divided in two: Communist North Korea (supported by the Soviet Union), and South Korea (supported by the US).
In 1950, Kim II Sung, the leader of North Korea, invaded South Korea in order to unify both countries under his command. In response to this invasion, President Truman ordered the US forces to aid its ally and reject North Korea advances.
Even when the conflict resulted on military stalemate, the United States proved the ideals of the Truman Doctrine by controlling communist invasion in the context of Cold War.
