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The telegraph represents one of the most significant technological advancements of the 19th century, marking a transformative period in global communication. By enabling messages to be transmitted across vast distances almost instantaneously, the telegraph revolutionized how people communicated and laid the groundwork for the development of subsequent technologies such as the telephone, radio, and the internet. White House Telegraph Room, 1898, (Library of Congress, Washington, D.C. (digital. id

DefinitionTelecommunication Device: An apparatus that transmits messages over long distances using electrical signals. It was a key innovation in communication technology during the 19th century.Communication Method: A system that employs encoded signals, such as Morse code, to send and receive messages between two points.EtymologyThe term "telegraph" comes from the Greek words "tele" (meaning "far") and "graphein" (meaning "to write").The modern electrical telegraph was invented by Samuel Morse