Complex sentence: Richard Milhous Nixon (January 9,1913--April 22,1994) was the 37th President of the United States from 1969 until 1974, when he resigned from office, the only U.S. president to do so.
Split into simpler sentences: Richard Milhous Nixon (January 9,1913--April 22,1994) was an American politician. Nixon served as the 37th President of the United States from 1969 until 1974, when he resigned from office, the only U.S. president to do so.