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: U.S. CITIES 
Clue: On May 24, 1844 Samuel Morse was in this city demonstrating his invention
washington, d.c.

Category: HISTORIC BOOKS 
Clue: It was written in 1924 in the fortress of Landsberg am Lech
mein kampf by adolf hitler

Category: AFRICAN COUNTRIES 
Clue: The northernmost country in Africa, it's much smaller than the countries that border it

tunisia