Enigma Machine
Breaks a modified commercial Enigma system used by forces supporting Franco in the Spanish Civil War.
Historical biography archive · Updated 2026-11-03
Dilly Knox Biography and Timeline
Follow Dilly Knox through 7 dated historical records for Great Britain.
Dilly Knox, historical timeline
A chronological timeline drawn from matching World History Database records.
7Distinct records
1 of 1Page
1937–1941Years on this page
1937
1938
Enigma Machine
Takes his Enigma team to Bletchley Park during the GC&CS wartime rehearsal.
1939
Enigma Machine
Attends the January Paris meeting and assesses the allied position against military Enigma.
Role range: 1939-1945
Enigma Machine
Receives a detailed explanation of the Polish solution to military Enigma at Pyry.
Role range: 1939-1945
1940
Enigma Machine
The first operational break into Enigma when the team working under Dilly Knox, with the mathematicians John Jeffreys, Peter Twinn and Alan Turing, unravelled the German Army administrative key that became known at Bletchley Park as The Green, encouraged by this success, the codebreakers later crack the Red key used by the Luftwaffe
Role range: 1939-1945
Luftwaffe
The first operational break into Enigma when the team working under Dilly Knox, with the mathematicians John Jeffreys, Peter Twinn and Alan Turing, unravelled the German Army administrative key that became known at Bletchley Park as The Green, encouraged by this success, the codebreakers later crack the Red key used by the Luftwaffe
Role range: 1939-1945
1941
Enigma Machine
Leads cryptanalysis of Italian naval Enigma traffic that contributes intelligence before Cape Matapan.
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.