Mass Communication Media on Stamps The Telegraph |
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Technology started advancing rapidly in the mid-1800s. The telegraph for sending messages through a wire was invented in 1844. The telephone, which could send a voice through a wire, was invented in 1876. The wireless telegraph used radio waves in 1896. The radiotelephone sent a voice through the air in 1906. The radio for household use was invented in the 1920s. Samuel F.B. Morse is credited with inventing a telegraph machine and devising a Morse code representing letters of the alphabet. On May 25, 1844, he sent a message between Baltimore and Washington, "What hath God wrought?" Of course, the telegraph was not a mass medium, but a device for interpersonal communication via wires. |
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