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world war 1 begins in europe
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revolution and civil war begins in russia
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world war 1 ends
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civil war ends in russia with the communist party in control
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great depression begins when stock markets crash in major cities
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world war 2 begins in europe
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Period: to
great depression ends in various countries
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world war 2 expands to asia when japanese forces bomb pearl harbor and capture hong kong
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world war 2 ends with the surrender of germany and japan