* 6 May 1872, † 20 November 1934
Willem de Sitter was born on 6 May 1872 in Sneek, Netherlands. Willem de Sitter died on 20 November 1934 in Leiden, Netherlands.
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| created: 2016-08-26 21:54:33 | modified: 2016-08-26 21:54:33 | by: bookofproofs | references: [6909]
[6909] O’Connor, John J; Robertson, Edmund F: “MacTutor History of Mathematics Archive”, http://www-history.mcs.st-and.ac.uk/, 2014
