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United Nations formed
Four months after the San Francisco Conference ended, the United Nations officially began, on 24 October 1945, when it came into existence after its Charter had been ratified by China, France, the Soviet Union, the United Kingdom, the United States and by a majority of other signatories. -
Truman Doctrine
On March 12, 1947, President Harry S. Truman presented this address before a joint session of Congress. His message, known as the Truman Doctrine, asked Congress for $400 million in military and economic assistance for Turkey and Greece. -
Hollywood 10
Hollywood Ten, in U.S. history, 10 motion-picture producers, directors, and screenwriters who appeared before the House Un-American Activities Committee in October 1947, refused to answer questions regarding their possible communist affiliations, and, after spending time in prison for contempt of Congress, were mostly -
Marshall Plan
On April 3, 1948, President Truman signed the Economic Recovery Act of 1948. It became known as the Marshall Plan, named for Secretary of State George Marshall, who in 1947 proposed that the United States provide economic assistance to restore the economic infrastructure of postwar Europe. -
NATO formed
The North Atlantic Treaty Organization was created in 1949 by the United States, Canada, and several Western European nations to provide collective security against the Soviet Union. NATO was the first peacetime military alliance the United States entered into outside of the Western Hemisphere. -
Korean War
After five years of simmering tensions on the Korean peninsula, the Korean War began on June 25, 1950, when the Northern Korean People's Army invaded South Korea in a coordinated general attack at several strategic points along the 38th parallel, the line dividing communist North Korea from the non-communist Republic -
Space Race/Sputnik
On October 4, 1957, the Soviet Union successfully launched Sputnik-1, the world's first artificial satellite. -
Bay of Pigs
On April 17, 1961, 1,400 Cuban exiles launched what became a botched invasion at the Bay of Pigs on the south coast of Cuba. In 1959, Fidel Castro came to power in an armed revolt that overthrew Cuban dictator Fulgencio Batista. -
Berlin Wall goes up
On August 13, 1961, the SED began to seal off the borders around West Berlin, first with barbed wire and a few days later with walls. It hoped this measure would put an end to the mass exodus to Berlin. It also wanted to stabilize its power and document its sovereignty to the outside world. -
U.S. official enters Vietnam War
In March 1965, Johnson made the decision—with solid support from the American public—to send U.S. combat forces into battle in Vietnam. -
Soviets invade Afghanistan
These uprisings, along with internal fighting and coups within the government between the People's and Banner factions, prompted the Soviets to invade the country on the night of December 24, 1979, sending in some 30,000 troops and toppling the short-lived presidency of People's leader Hafizullah Amin. -
Berlin Wall comes down
The Berlin Wall came down on the evening of November 9, 1989, during a hastily arranged international press conference in East Berlin. Günter Schabowski, an official in East Germany's ruling Socialist Unity Party, ambled to the podium clutching some papers