Telegraphy
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Telegraphy is the long-distance transmission of messages where the sender uses symbolic codes, known to the recipient, rather than a physical exchange of an object bearing the message. Thus flag semap
Replica of a Chappe telegraph on the Litermont near Nalbach, Germany
A section of the Great Wall of China built during the Ming dynasty (1368–1644)
19th-century demonstration of the semaphore
A site in Hammersmith London (UK) where Sir Francis Ronalds constructed the first electric telegraph in 1816
Telegram
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A telegram is a written or printed message, originally sent through telegraphy. The use of the telegrams was popular for social and business correspondence in the latter half of the 19th and the first
Telegraphy
…became important for maritime use, and was a competitor to electrical telegraphy using submarine telegraph cables in international communications. Telegrams became a popular means of sending messages once telegraph prices had fallen sufficiently. Traffic became high enough to spur the development of automated…
Western Union telegram sent to President Dwight Eisenhower wishing him a speedy recovery from his heart attack on Sept 26, 1955
Western Union telegram (1930)