KnowraTelegraphyLinked fromLinked fromThe 53 pages that link to Telegraphy, each with the reason it gives.All 53Broader topic 5Related 25Narrower topic 17Compared with 6Andrew CarnegieBroader topic: Carnegie learned telegraphy as a teenager, beginning a career built on communication and connections.Digital signalBroader topic: Telegraph systems used discrete signal patterns to transmit written messages.TelecommunicationsBroader topic: The electric telegraph established rapid long-distance communication before voice telephony.History of communicationBroader topic: The electric telegraph separated message transmission from the physical movement of people and goods.History of electrical engineeringBroader topic: The telegraph was among the first large-scale applications of electrical engineering.