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Czech agents kill SS General Reinhard Heydrich, chief of the Reich Security Main Office.
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Franklin D Roosevelt becomes the 32nd president of the United States
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President Roosevelt dies suddenly; Vice President Harry S. Truman assumes the presidency and role as commander in chief of World War II.
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Adolf Hitler commits suicide in his bunker in Berlin.
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The gun model uranium bomb, called Little Boy, is dropped on Hiroshima, Japan.
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By a vote of 65–7, the United States Senate approves the entry of the United States into the United Nations.
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President Harry Truman signs the Marshall Plan, which authorizes $15 billion in aid for 16 countries
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The Twenty-second Amendment to the United States Constitution, limiting Presidents to two terms, is ratified.
