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A system for transmitting voices over a distance using wire or radio, by converting acoustic vibrations to electrical signals.

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Series of dots and dashes that could be transmitted electrically to communicate

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Machine that records and plays sound.

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The transmission and reception of electromagnetic waves of radio frequency, especially those carrying sound messages.

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- Telegraph could only send one message.
- People wanted a faster way to send multiple messages.

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- Population expansion in U.S. and UK

- Need for communication that could cover great distances

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- Had no other way to record sound.
- Wanted to record music.

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- People wanted to play music, etc. in a smaller package.

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- Spread through the United States quickly.
- International on early 1900s.
- Made communication faster than ever.
- Led to radio and phonograph and the modern phone.

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- Developed in 1836, opened in
1844 between Baltimore and Washington D.C.
- known as Morse Code,
- Expanded with railroad, which acted as telegraph stations
- cut time from days to minutes
- led to development of telephone

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- Music became more popular and started getting analyzed.
- Spread quickly and internationally.
- Led to other recordings like video, etc.
- Books for blind people.

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- Popularized music even more.
- Made musicians think about their lyrics, etc.