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Willem de Sitter
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View of the Andromeda Galaxy (Messier 31, M31).
Astronomy and Space Quiz
Michael Faraday (L) English physicist and chemist (electromagnetism) and John Frederic Daniell (R) British chemist and meteorologist who invented the Daniell cell.
Faces of Science
Equations written on blackboard
Numbers and Mathematics
Nicolaus Copernicus. Nicolas Copernicus (1473-1543) Polish astronomer. In 1543 he published, forward proof of a Heliocentric (sun centered) universe. Coloured stipple engraving published London 1802. De revolutionibus orbium coelestium libri vi.
All About Astronomy

Willem de Sitter: References & Edit History

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Article History

Type Description Contributor Date
Anniversary information added. May 02, 2026
Anniversary information added. Nov 16, 2025
First paragraph modernization. Apr 09, 2024
Modified title of Web site: MacTutor History of Mathematics Archive - Biography of Willem de Sitter. Jan 18, 2017
Added new Web site: MacTutor History of Mathematics Archive - Biography of Willem de Sitter. Mar 31, 2008
Article added to new online database. Jul 20, 1998
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