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The Declaration of Independence proclaimed that the American colonies were separating from British rule, and detailed the reasons. On July 4, 1776, Congress voted to accept the Declaration of Independence, marking July 4 as Independence Day. -
Détente is the relaxation of strained relations, especially political ones, through verbal communication -
McCarthyism, also known as the second Red Scare, was the political repression and persecution of left-wing individuals -
With the Truman Doctrine, President Harry S. Truman established that the United States would provide political, military and economic assistance to all democratic nations under threat from external or internal authoritarian forces. -
The crisis started on June 24, 1948, when Soviet forces blockaded rail, road, and water access to Allied-controlled areas of Berlin -
On April 3, 1948, President Truman signed the Economic Recovery Act of 1948. It became known as the Marshall Plan -
The foundations of the North Atlantic Treaty Organization (NATO) were officially laid down on 4 April 1949 with the signing of the North Atlantic Treaty, more popularly known as the Washington Treaty -
On October 1, 1949, Chinese Communist leader Mao Zedong declared the creation of the People's Republic of China (PRC). -
After five years of simmering tensions on the Korean peninsula, the Korean War began on June 25, 1950 -
A federal grand jury indicted Hiss on two counts of perjury. After a mistrial due to a hung jury, Hiss was tried a second time, and in January 1950 he was found guilty and received two concurrent five-year sentences, -
On July 27, 1953, seven months after President Eisenhower's inauguration as the 34th President of the United States, an armistice was signed, ending organized combat operations and leaving the Korean Peninsula divided much as it had been since the close of World War II at the 38th parallel. The Korean U.N. -
In June 1953, Julius and Ethel Rosenberg were executed for conspiracy to commit espionage under the U.S. Espionage Act of 1917 -
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Formally known as the Treaty of Friendship, Co-operation and Mutual Assistance, the Warsaw Pact was created on 14 May 1955 -
U-2 Incident, (1960), confrontation between the United States and the Soviet Union that began with the shooting down of a U.S. U-2 reconnaissance plane -
On the night of August 12-13, 1961, East German soldiers laid down more than 30 miles of barbed wire barrier through the heart of Berlin. -
On April 17, the Cuban-exile invasion force, known as Brigade 2506, landed at beaches along the Bay of Pigs and immediately came under heavy fire. -
The Cuban Missile Crisis of October 1962 was a direct and dangerous confrontation between the United States and the Soviet Union during the Cold War -
April 1, 1965. Shortly after Operation Rolling Thunder began in 1965, President Johnson committed the first U.S. ground troops to the Vietnam War. -
Vietnamization was a policy of the Richard Nixon administration to end U.S. involvement in the Vietnam War through a program to "expand, equip, and train South Vietnamese forces and assign to them an ever-increasing combat role, at the same time steadily reducing the number of U.S. combat troops -
Ping-pong diplomacy refers to the exchange of table tennis (ping-pong) players between the United States (US) and People's Republic of China (PRC) in the early 1970s, that began during the 1971 World Table Tennis Championships in Nagoya, Japan as a result of an encounter -
The event marked the end of the Vietnam War and non-communist South Vietnam as well as the start of a transition period from the formal reunification of Vietnam -
Perestroika was a political movement for reform within the Communist Party of the Soviet Union (CPSU) during the late 1980s -
The Berlin Wall stood until November 9, 1989, when the head of the East German Communist Party announced that citizens of the GDR could cross the border whenever they pleased. That night, ecstatic crowds swarmed the wall.