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The first atomic bomb agreement is signed
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 -
The first African American official in U.S. State Department
On January, 4 1944 Ralph Bunche appointed the first African American official in the U.S. State Department. -
United States enters the United Nations
the United States Senate approves the entry of the United States into the United Nations. -
Marshall Plan
President Harry Truman signs the Marshall Plan, which authorizes $15 billion in aid for 16 countries. -
Development of Hydrogen Bomb
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. -
Twenty-second Amendment
The Twenty-second Amendment to the United States Constitution, limiting Presidents to two terms. -
Dwight D. Eisenhower became the 34th president
Dwight D. Eisenhower is elected as the 34th President of the United States.
