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: PRESIDENTIAL ELECTION HISTORY 
Clue: Due to the large numbers of men away from home, it was the first year a majority of states counted absentee votes
1864

Category: SPORTS CHAMPIONS 
Clue: Winning in 1965 & 1966, he was the first man to win the Masters golf tournament in 2 consecutive years
jack nicklaus

Category: ISLANDS 
Clue: The Carabelli & Durazzo families are considered the Hatfields & McCoys of this island

corsica