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March 15, 1854: Diphtheria’s Foe
1854: Emil von Behring, who will develop a vaccination to eradicate diphtheria, is born in Hansdorf, East Prussia. Von Behring was on his way to the priesthood when a friend of the family, an army...
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April 20, 1940: Electron Microscope Crosses the Atlantic; Zworykin Crosses...
1940: Vladimir Zworykin, better known as a co-inventor of television, demonstrates the first electron microscope in the United States. Once again, the Russian emigré improves but does not, strictly...
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Sept. 23, 1846: Neptune Right Where They Said It Would Be
1846: German astronomer Johann Gottfried Galle, knowing exactly where to look, confirms the existence of an eighth planet in the solar system, Neptune. Galle was not the first astronomer to see Neptune...
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