Enigma MachineMarch 1940
Leads British Tabulating Machine engineering work that turns Turing's Bombe design into operational hardware.
Historical person
Harold Keen Biography
Historical biography and chronological timeline for Harold Keen, based on 2 World History Database records associated with Great Britain.
2 records1940–19401 events1 places
Chronological biography
1940
Enigma MachineAugust 1940
Oversees engineering of the improved Bombe known as Agnus Dei, incorporating Welchman's diagonal board.
Record provenance
This biography is assembled from World History Database records filtered by country and personal-name fields. Exact duplicate display records are removed. The database is an index rather than a complete narrative biography; formal research should verify entries against relevant primary or specialist sources.