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: "FIRST" PHRASES 
Clue: The earliest known use of this term was in an Indianapolis Star opinion piece of September 20, 1914

SOLUTION: first world war

PROBLEM: Category: LANDMARKS 
Clue: In the 1879 Mathew Brady photo seen here, this structure was about 150 feet tall

SOLUTION: washington monument

PROBLEM: Category: U.S. STATESMEN 
Clue: In 1814 & 1815, before he was president, he served simultaneously as Sec. of State & Sec. of War

SOLUTION:
james monroe