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11h 51min, apr 6, 1917 y - The US Congress voted to declare war on Germany.

Description:

Germany made a secret offer to help Mexico regain territories lost in the Mexican–American War in an encoded telegram known as the Zimmermann Telegram, which was intercepted by British Intelligence.

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Date:

11h 51min, apr 6, 1917 y
Now
~ 108 years ago

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