157th birth anniversary of Theodore Roosevelt ( October 27, 1858, Manhattan, New York City, New York, United States - January 6, 1919, Cove Neck, New York, United States) -- often referred to as Teddy or TR, was an American statesman, author, explorer, soldier, naturalist, and reformer who served as the 26th President of the United States, from 1901 to 1909.