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

SOLUTION: nelson mandela

PROBLEM: Category: AMERICAN LITERATURE
Clue: Controversial even when serialized in the "National Era", it sold over 300,000 copies in book form in 1852

SOLUTION: uncle tom's cabin

PROBLEM: Category: U.S. PRESIDENTS
Clue: The first man to receive a million votes for president in one election, he didn't get to enjoy the victory for long

SOLUTION:
william henry harrison