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: AMERICAN LEGAL HISTORY 
Clue: 5 of the women condemned in Salem in 1692 were finally exonerated by a bill signed on this day in 2001

SOLUTION: halloween

PROBLEM: Category: FAMOUS PEOPLE 
Clue: On January 27, 1999 he returned home aboard a TWA 767 designated Shepherd I

SOLUTION: pope john paul ii

PROBLEM: Category: SIGNS & SYMBOLS 
Clue: To boost morale between 2 merging insurance companies, it was designed & put on a pin in 1963 by Harvey Ball

SOLUTION:
the smiley face