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A coded message from Germany to Mexico, proposed a military alliance between Germany and Mexico if the United States entered World War I -
Guarantees the right to vote to all American citizens, regardless of gender. -
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United States detonated two atomic bombs over the Japanese cities of Hiroshima and Nagasaki. -
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Coordinated terrorist attacks in which 4 planes hit the twin towers and other landmarks. -
The outbreak of the coronavirus.