Negative Curvature Cosmology
The achievement marks negative curvature cosmology as an important Russian scientific milestone.
Historical biography archive · Updated 2026-11-03
Alexander Alexandrovich Friedmann Biography and Timeline
Follow Alexander Alexandrovich Friedmann through 2 dated historical records for Russia.
Alexander Alexandrovich Friedmann, historical timeline
A chronological timeline drawn from matching World History Database records.
2Distinct records
1 of 1Page
1924–1924Years on this page
1924
Open Universe Model
Publishes a relativistic universe model with constant negative spatial curvature.
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.