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assembly line
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anesthesia in surgery
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Darwins theroy of evolution
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bessmer steel process
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mendel genetics
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lister cleaniness to avoid infection
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stock ticker
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periodic table
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internal combustion engine
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1st electrical dynamo
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smallpox eradicated
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Telephone (A.G. Bell Patent)
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1st usable light bulb
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electric elevator
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NY's first electric street light
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inoculation of rabies
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steel framed building
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daimler motor co.
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marie curie radioactivity
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1300 automobiles on roads of north america and europe
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wireless telegram and radio
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wright bros age of flight
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curies share nobel prize for physics (radioactivity)
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marie cury nobel prize for chemistry
