De Sitter Universe
Develops a relativistic cosmological model with repulsive expansion-like behaviour.
Role range: 1872-1934
Historical biography archive · Updated 2026-11-03
Willem Sitter Biography and Timeline
Follow Willem Sitter through 1 dated historical records for Netherlands.
Willem Sitter, historical timeline
A chronological timeline drawn from matching World History Database records.
1Distinct records
1 of 1Page
1917–1917Years on this page
1917
Records, sources and methodology
These dates and descriptions come from the historical_events database. Exact duplicate records have been collapsed. Names are grouped by the country, Name 2 and Name 1 fields; records with missing Name 2 cannot be reliably assigned to an individual biography. Check the underlying sources before formal citation.