Timeline of the Harry S. Truman presidency

The presidency of Harry S. Truman began on April 12, 1945, when Harry S. Truman became the 33rd president upon the death of Franklin D. Roosevelt, and ended on January 20, 1953. == 1945 == === April === April 12 – Harry S. Truman is inaugurated as the 33rd president of the United States in a ceremony in the Cabinet Room, the oath being administered by Chief Justice of the United States Harlan F. Stone and completed exactly two hours and thirty four minutes after the death of Franklin D. Roosevelt.

Source: Wikipedia — Timeline of the Harry S. Truman presidency (CC BY-SA 4.0)