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Atomic Bomb Agreement
The development of the first atomic bomb is signed into agreement by Winston Churchill, the Prime Minister of Great Britain, and President Franklin D. Roosevelt. -
The Jefferson Memorial
The Jefferson Memorial in Washington, D.C. was dedicated on the 200th anniversary of Thomas Jefferson's birthday by President Franklin D. Roosevelt. -
President Harry S. Truman
Harry S. Truman won the presidential election and became the 33rd president of the United States. -
U.S. enters the U.N.
The U.S. Senate approves the entry of the United States into the United Nations. -
The Marshall Plan
President Harry Truman signs the Marshall Plan, which authorizes $15 billion in aid for 16 countries. -
Nobel Peace Prize
Ralph Bunche was the first African American to be awarded the Peace Prize. He received it for having arranged a cease-fire between Israelis and Arabs during the war which followed the creation of the state of Israel. -
Hydrogen Bomb Development
President Harry S. Truman orders the development of the hydrogen bomb, in response to the detonation of the Soviet Union's first atomic bomb in 1949. -
The 22nd Amendment
The 22nd Amendment was passed by Congress which limited Presidents to two terms. -
President Dwight D. Eisenhower
Dwight D. Eisenhower won the presidential election and became the 34th president of the United States. -
Disneyland
Disneyland was the first of two theme parks built at the Disneyland Resort in Anaheim, California. -
Landrum Griffin Act
Public opinion of organized labor began to decline as evidence surfaced of corruption. The Landrum-Griffin Act responded by curbing the power of union officials. -
The 23rd Amendment
The 23rd Amendment allows American citizens residing in the District of Columbia to vote for presidential electors, who in turn vote in the Electoral College for President and Vice President -
President John F. Kennedy
John F. Kennedy won the presidential election and became the 35th president of the United States. -
Trade Expansion Act
In order to stimulate international trade, President Kennedy lowered the American protective tariff. -
President Kennedy's Assassination
President Kennedy was assassinated by Lee Harvey Oswald. Lyndon Johnson was immediately sworn into the presidency. -
The 24th Amendment
The 24th Amendment abolished the use of a poll tax in national votes. From 1964 onward, black communities would not be subjected to poll taxes during elections. -
Man on the Moon
Neil Armstrong was an American astronaut and the first person to walk on the moon. -
Public Health Cigarette Smoking Act
The Public Health Cigarette Smoking Act was passed by Congress. It extends public health protection with respect to cigarette smoking and for other purposes. -
The Fall of Saigon
By the end of 1975, the North Vietnamese had resumed their invasion and rapidly taken South Vietnam. Over 500,000 South Vietnamese fled Vietnam to escape the communists. -
John Lennon's Assassination
John Lennon, a member of the Beatles, was assassinated in New York City by Mark David Chapman killed him. -
Bombing of the Beirut Barracks
The bombing of the Beruit barracks marked the end of peacekeeping operations in Lebanon. -
Tax Reform Act
The Tax Reform Act simplified the tax code and broadened the tax base. It was referred to as "Reagan tax cuts". -
President George H.W. Bush
George H.W. Bush won the presidential election and became the 41st president of the United States. -
USSR Dissolved
The Cold War officially ends when the USSR is dissolved. -
The 27th Amendment
The 27th Amendment prohibits changes in Congressional salaries to take effect until after the next election cycle. It was first proposed in 1789. -
President Bill Clinton
Bill Clinton won the presidential election and became the 42nd president of the United States. -
Bombing in Oklahoma City
The Oklahoma City Bombing was an attack on the Alfred P. Murrah Federal Building in Oklahoma City. 168 people were killed including 19 children under the age of 6.