Great Red Spot Tracking
Begins systematic observations of Jupiter's Great Red Spot and its changing longitude.
Role range: 1848-1931
Historical biography archive · Updated 2026-11-03
William Frederick Denning Biography and Timeline
Follow William Frederick Denning through 2 dated historical records for Great Britain.
William Frederick Denning, historical timeline
A chronological timeline drawn from matching World History Database records.
2Distinct records
1 of 1Page
1878–1879Years on this page
1878
1879
Jupiter Rotation
Uses atmospheric markings to refine estimates of Jupiter's rotation.
Role range: 1848-1931
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.