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Room 40, also known as 40 O.B. (old building; officially part of NID25), was the cryptanalysis section of the British Admiralty during the First World War.
Art, Prelude & Room 40
Explore the main themes, entities and connections around Room 40. Start with the topic map, then use the sections below for research and deeper semantic analysis.
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german room messages 40 naval war intelligence british code information first used new ships admiralty codebook also secret passed wireless
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| William Montgomery | instance of | Ewing recruited civilians | 0.80 | text |
| a translator of theological works from German | instance of | Ewing recruited civilians | 0.80 | text |
| and Nigel de Grey | instance of | Ewing recruited civilians | 0.80 | text |
| a publisher | instance of | Ewing recruited civilians | 0.80 | text |
| aircraft | instance of | and did not mention modern inventions | 0.80 | text |
| patrol boats | instance of | The code was used particularly by light forces | 0.80 | text |
| and for routine matters such as leaving | instance of | The code was used particularly by light forces | 0.80 | text |
| entering harbour | instance of | The code was used particularly by light forces | 0.80 | text |
| Room 40 | related to background | In | 0.60 | section |
| Room 40 | related to background | Committee | 0.60 | section |
| Room 40 | related to background | Imperial Defence | 0.60 | section |
| Room 40 | related to background | Germany | 0.60 | section |
These clusters group vocabulary that occurs around closely connected concepts in the source material.
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