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British troops kill hundreds of Indian protesters in Amritsar.
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The kingdom of Transjordan is created.
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Ireland achieves independence.
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Egypt wins independence from Great Britain.
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A scientist in Scotland discovers penicillin, an antibacterial agent.
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The us stock market crashes
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Japan invades Manchuria.
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Adolf Hitler becomes chancellor of Germany.
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Prohibition ends in the United States.
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Italian forces invade Ethiopia.
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An earthquake kills 20,000 people in Pakistan.
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Anti-Jewish riots sweep Germany.
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The Spanish civil war ends with a Fascist victory.