What date, infamous for the attack on Pearl Harbor, led the United States to enter World War II?

Category: History · Difficulty: medium

Hint: This day is often referred to as 'a date which will live in infamy.'

Answer

December 7, 1941

Explanation

The attack on Pearl Harbor on December 7, 1941, prompted the U.S. to formally enter World War II.

This is a medium history riddle — a moderate challenge for most people. The answer is December 7, 1941.

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