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Disregard the month and day in the dates.
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Alexander Fleming is born in Ayrshire, England.
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Fleming starts to study medicine at St. Mary's Hospital Medical School.
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World War I starts.
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Fleming discovers lysozyme, and enzyme that dissolves some bacteria.
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Fleming discovers bacteria that would be developed into penicillin, the world's first anti-biotic.
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The Great Depression begins.
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World War II starts.
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Fleming was co-awarded the Nobel Prize in Physiology or Medicine.
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The United States dropped atom bombs on the Japanese cities of Hiroshima and Nagasaki.
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Alexander Fleming dies of a heart attack.