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.

Q: Category: ASTRONOMER'S DICTIONARY 
Clue: This word comes from a Greek phrase meaning "circle of animals"

A: zodiac
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Q: Category: THE REVOLUTIONARY WAR 
Clue: In April 1775 Gen. J. Warren made him an official messenger of the Committee of Safety

A: paul revere
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Q: Category: SCIENTISTS 
Clue: Bertrand Russell said that "What Galileo and Newton were to the 17th century," this man "was to the 19th"

A:
charles darwin
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