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Room 40
The Admiralty's codebreaking section, which read the Zimmermann telegram.
Organization
Identifiers
Wikidata Q1141109
Appears in
2 items
Telegraph to Smartphone
1 item
Room 40 breaks the Zimmermann telegram
· codebreaker
17 Jan 1917
World War I
1 item
The Zimmermann telegram
· codebreakers
16 Jan 1917
Sources
Website
Zimmermann Telegram (1917)
