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Cholera Epidemic and first public health law in Britain
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Realism dominant in Western arts and literature
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Modernization of Paris
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Pasteur begins studying fermentation
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Darwin publishes On the Origin of Species by the Means of Natural Selection
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Development of germ theory
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Pasteur develops pasteurization
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Mendeleev creates the periodic table
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2nd Industrial Revolution
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Completion of London sewer system
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Electric streetcars introduced in Europe
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Max Weber publishes the Protestant Ethic and the Spirit of Capitalism