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: DRAMA 
Clue: This play begins as Willy Loman returns home from a trip

SOLUTION: death of a salesman

PROBLEM: Category: PHOTOGRAPHERS 
Clue: In April 1875 the Library of Congress gained possession of his Civil War photographic plates for $25,000

SOLUTION: mathew brady

PROBLEM: Category: HISTORIC PEOPLE 
Clue: In the 990s this son of Erik the Red brought Christianity to Greenland

SOLUTION:
leif ericson