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The U.S. purchases Alaska from Russia for $7.2 million
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Fire kills hundreds, burns much of Chicago, and leaves many homeless.
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Thousands of people died and about 80% of San Francisco was destroyed.
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This is the official beginning of the Great Depression.
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The launch of the first artificial satellite
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Apple Computer was created by Steve Jobs and Steve Wozniak
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Bombing of the World Trade Center
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The costliest and most deadly hurricanes.