DBQ From 1987 AP US History Exam

The German sinking of the Lusitania caused America to enter World War I.

The German sinking of the Lusitania caused America to enter World War I.

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I'm not a history person but I believe that the ‘‘Zimmermann Telegram’’ — a signal intercepted and deciphered by British intelligence from Germany’s foreign minister to his man in Mexico- became the catalyst for America entering the WW1.