The discovery of a hypothetical planet Vulcan…
January 1860 CE
The discovery of a hypothetical planet Vulcan is announced at a meeting of the French Academy of Sciences in Paris, France, by French mathematician Urbain Le Verrier on January 2, 1860.
January 1860 CE
The discovery of a hypothetical planet Vulcan is announced at a meeting of the French Academy of Sciences in Paris, France, by French mathematician Urbain Le Verrier on January 2, 1860.