Complex sentence: Millard Fillmore (January 7,1800--March 8,1874) was the 13th President of the United States (1850--53), the last Whig president, and the last president not to be affiliated with either the Democratic or Republican parties.
Split into simpler sentences: Millard Fillmore (January 7,1800--March 8,1874) was an American statesman who served as the 13th President of the United States from 1850 to 1853. He was the last Whig president, and the last president not to be affiliated with either the Democratic or Republican parties.