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One of the most important discoveries
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Horace Wells (inventor)
Nitrous oxide -
Antonio Santi Giuseppe Meucci
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Thomas Edison and Josephn Swan patented the first light bulb in 1879 and 1880
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Edward Jenner used the smallpox virus vaccine to protect against the disease
Louis Pasteur developed a rabies vaccine in 1885 -
Robert Hutchings Goddard
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It was discovered accidentally
They became the silver bullet for a large number of previously deadly diseases. -
Social revolution started
