You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

Category: HISTORIC AMERICANS 
Clue: He turned down an appointment as a U.S. senator in 1875 because it meant accepting a pardon for treason
jefferson davis

Category: U.S. PRESIDENTS 
Clue: The first two presidents not born in Virginia were born in what is now this state
massachusetts

Category: WORLD LEADERS 
Clue: At his 1994 inaugural, he called for "a rainbow nation at peace with itself and the world"

nelson mandela

