Transmission Of Messages
Scope Note
This category is used for to index information on the technologically simple transmission of messages. The category includes information on signaling devices (e.g., fire, smoke, blinker, semaphore); signal codes (e.g., drum language, flag codes, Morse code); cryptography; use of carrier birds and animals; messenger and human courier systems; etc. For information on specific methods of transmission use "Mail" (205), "Telephone" (206), "Radio and Television" (207), and "Internet Communications" (2010).
History Note
Scope note revised 10-20-2010: last sentence changed from: "For information on more technologically advanced transmission of messages use "Mail" (205), "Telephone and Telegraph" (206), "Radio and Television" (207), and "Internet Communications" (2010)."
- Broader Term
- 200 Communication
- Related Terms
- 191 Speech
- 2010 Internet Communications
- 205 Mail
- 206 Telephone
- 207 Radio And Television
- 484 Travel
- 495 Auxiliary Highway Services
- 496 Railways
- 648 External Relations
- 726 Warfare
- Use Fors
- Animals (message carriers)
- Beacons (signaling devices)
- Birds (use as message carriers)
- Blinker system (use in communication)
- Carriers (message (birds and animals))
- Ciphers
- Communication systems (blinker)
- Communication systems (flags)
- Communication systems (semaphore)
- Courier systems
- Couriers (transmission of messages)
- Cryptography
- Drums (use in signaling)
- Flags in general communication
- Flashers as signaling devices
- Gongs (use as signals)
- Light (use in signaling)
- Message carriers (birds and animals)
- Messages (technologically simple transmission)
- Messages and messengers (technologically simple)
- Rockets (signals)
- Semaphore systems of communication (general)
- Signal codes (general)
- Signaling and signalling devices
- Tolling bells (to transmit a message)
- Tolling of bells (signal)
- Transmission of messages
- Identifier
- 202
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