Martin Van Buren has several factoid-related bits. (1) He was the first president to be born an American citizen, born 1782, after the Revolution. (2) He was the first president not of British descent. (3) He was nicknamed "Old Kinderhook," or O.K., from the village where he was born. (4) Along with Thomas Jefferson, he served as Secretary of State, VP, and then president, the 'Triple Crown' of US politics. (5) He was the only president to see both the US Revolution and the Civil War, living from 1782 to 1862.