On this day in 1859, Urbain Le Verrier presented a paper to the Academy of Sciences in which he attributed the advance of the perihelion of Mercury to an undiscovered planet, which he called Vulcan, closer to the Sun than Mercury or to a second asteroid belt so close to the Sun as to be invisible.
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Born:
1877: Georg Hamel Ⓟ
1894: Dorothy Wrinch Ⓟ
1898: Erich Bessel-Hagen Ⓟ
1900: Haskell Curry Ⓟ
1921: Pierre Samuel Ⓟ
1960: Nassim Taleb Ⓟ
Died:
1906: Ernesto Cesàro Ⓟ
1918: Maxime Bôcher Ⓟ
1933: Leonard Rogers Ⓟ
1940: Annie Fitch MacKinnon Ⓟ
1971: Hubert Wall Ⓟ
1983: Roman Sikorski Ⓟ
2005: Serge Lang Ⓟ
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