Enigma Machine
Leads British Tabulating Machine engineering work that turns Turing's Bombe design into operational hardware.
Role range: 1939-1945
Historical biography archive · Updated 2026-11-03
Harold Keen Biography and Timeline
Follow Harold Keen through 2 dated historical records for Great Britain.
Harold Keen, historical timeline
A chronological timeline drawn from matching World History Database records.
2Distinct records
1 of 1Page
1940–1940Years on this page
1940
Enigma Machine
Oversees engineering of the improved Bombe known as Agnus Dei, incorporating Welchman's diagonal board.
Role range: 1939-1945
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.