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The Titanic strikes an iceberg in the Northern Atlantic on its maiden voyage and sinks within hours, 1,517 to 2,100 passengers drown.
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The Panama Canal opened for the first time.
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World War 1 begins with Austria Hungary's declaration of war against Serbia.
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President Woodrow Wilson signs a declaration of war against Germany, bringing the United States into World War 1.
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World War 1 ends with a declared armistice at 11:00 o'clock in the morning.