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.

[EX Q]: Category: RARITIES 
Clue: All 6 examples of his signature known to exist date from between 1612 & 1616
[EX A]: william shakespeare

[EX Q]: Category: ROYALTY 
Clue: It's the name of today's longest-ruling family in Europe, in power for most of the last 711 years
[EX A]: grimaldi

[EX Q]: Category: AMERICAN HISTORY 
Clue: History was made on December 1, 1955 when bus driver James Blake called the police & had this person arrested
[EX A]:
rosa parks