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The early history of radio is the history of technology that produces and uses radio instruments that use radio waves. Within the timeline of radio, many people contributed theory and inventions in what became radio. Radio development began as "wireless telegraphy". Later radio history increasingly involves matters of broadcasting.
Radio broadcasting has been used in the United States since the early 1920s to distribute news and entertainment to a national audience. In 1923, 1 percent of U.S. households owned at least one radio receiver, while a majority did by 1931 and 75 percent did by 1937.
The timeline of radio lists within the history of radio, the technology and events that produced instruments that use radio waves and activities that people undertook. Later, the history is dominated by programming and contents, which is closer to general history .
The history of broadcasting in Canada begins as early as 1919 with the first experimental broadcast programs in Montreal. The Canadians were swept up in the radio craze and built crystal sets to listen to American stations while The Marconi Wireless Telegraph Company of Canada offered its first commercially produced radio-broadcast receiver ...
News broadcasting is the medium of broadcasting various news events and other information via television, radio, or the internet in the field of broadcast journalism. The content is usually either produced locally in a radio studio or television studio newsroom , or by a broadcast network .
The 1926 formation of the National Broadcasting Company was a consolidation and reorganization of earlier network radio operations developed by the American Telephone & Telegraph Company (AT&T) beginning in 1922, in addition to more limited efforts conducted by the "radio group" companies, which consisted of the Radio Corporation of America (RCA) and its corporate owners, General Electric (GE ...
A handful of radio programs from the old-time era remain in production, all from the genres of news, music, or religious broadcasting: the Grand Ole Opry (1925), Music and the Spoken Word (1929), The Lutheran Hour (1930), the CBS World News Roundup (1938), King Biscuit Time (1941) and the Renfro Valley Gatherin' (1943). Of those, all but the ...
Radio broadcasting is the broadcasting of audio (sound), sometimes with related metadata, by radio waves to radio receivers belonging to a public audience. In terrestrial radio broadcasting the radio waves are broadcast by a land-based radio station, while in satellite radio the radio waves are broadcast by a satellite in Earth orbit.