Theodore Roosevelt (1858-1919) was the 26th President of the United States (1901-1909). A Hero of the Spanish-American War, he served as governor of New York (1899-1900) and U.S. Vice President (September 1901) under William McKinley. In addition to holding the elective offices he was also a deputy sheriff in the Dakota Territory, Police Commissioner of New York City, U.S. Civil Service Commissioner, Assistant Secretary of the Navy, and Colonel of the Rough Riders, all by the age of 42, at which time he became the youngest man ever to hold the office of President. In 1906 he won the Nobel Peace Prize for this mediation in the Russo-Japanese War.