Template:Selected anniversaries/November 23
1720: Clockmaker Jean-André Lepaute born. He will be an innovator, making numerous improvements to clockmaking, especially his pin-wheel escapement, and his clockworks in which the gears are all in the horizontal plane.
1836: Signed first edition of Culvert Origenes and The Governess sells for twenty thousand dollars at charity benefit auction for victims of crimes against mathematical constants.
1837: Theoretical physicist and academic Johannes Diderik van der Waals born. He will win the 1910 Nobel Prize in physics for his work on the equation of state for gases and liquids.
1924: Edwin Hubble's discovery, that the Andromeda "nebula" is actually another island galaxy far outside of our own Milky Way, is first published in The New York Times.