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: HISTORIC LASTS 
Clue: In the "thanks a lot, fellas" department, Mongolia was the last country to join this group--August 9, 1945

SOLUTION: the allies

PROBLEM: Category: THE GLOBE 
Clue: Of the more than a dozen countries through which the equator passes, this country stretches farthest south

SOLUTION: brazil

PROBLEM: Category: GENESIS 
Clue: The final word in Genesis is the name of this country

SOLUTION:
egypt