August 3, 1923 - Calvin Coolidge becomes President. Calvin Coolidge became the 30th President of the United States in the early morning hours of August 3, 1923, following President Warren G. Harding’s death in San Francisco during his tour of the west. Coolidge was vacationing at his family home in Plymouth Notch, Vermont, and was sworn in by his father, a local notary.
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August 3, 1923 - Calvin Coolidge becomes President.

Calvin Coolidge became the 30th President of the United States in the early morning hours of August 3, 1923, following President Warren G. Harding’s death in San Francisco during his tour of the west. Coolidge was vacationing at his family home in Plymouth Notch, Vermont, and was sworn in by his father, a local notary.