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  2. History of radio - Wikipedia

    en.wikipedia.org/wiki/History_of_radio

    The Dutch company Nederlandsche Radio-Industrie and its owner-engineer, Hanso Idzerda, made its first regular entertainment radio broadcast over station PCGG from its workshop in The Hague on 6 November 1919. The company manufactured both transmitters and receivers.

  3. Timeline of radio - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_radio

    1920s: Radio was first used to transmit pictures visible as television. 1926: Official Egyptian decree to regulate radio transmission stations and radio receivers. [40] Early 1930s: Single sideband (SSB) and frequency modulation (FM) were invented by amateur radio operators. By 1940, they were established commercial modes.

  4. Radio in the United States - Wikipedia

    en.wikipedia.org/wiki/Radio_in_the_United_States

    The next year the company used the same concept to begin establishing the first radio network. [107] The WEAF and WJZ chains. At the same time in early 1922 that it announced the beginning of advertisement-supported broadcasting, AT&T also introduced its plans for the development of the first radio network. [104]

  5. Golden Age of Radio - Wikipedia

    en.wikipedia.org/wiki/Golden_Age_of_Radio

    Radio was the first broadcast medium, and during this period people regularly tuned in to their favorite radio programs, and families gathered to listen to the home radio in the evening. According to a 1947 C. E. Hooper survey, 82 out of 100 Americans were found to be radio listeners. [ 1 ]

  6. Milestones in radio: the first half century (1895–1945). The UNESCO courier (February 1997), p. 16–21; Radio Review/Radio Listeners Guide (1925–1929), Broadcasting Yearbook (1935–2010), World Radio TV Handbook (1947–) Berg, Jerome S. The early shortwave stations: a broadcasting history through 1945 (2013) radioheritage.net

  7. History of film - Wikipedia

    en.wikipedia.org/wiki/History_of_film

    Its first few films gained worldwide critical acclaim, after which the movement slowly faded out. Scorsese's Goodfellas was released in 1990. It is considered by many as one of the greatest movies to be made, particularly in the gangster genre. It is said to be the highest point of Scorsese's career. Cinema admissions in 1995

  8. History of broadcasting - Wikipedia

    en.wikipedia.org/wiki/History_of_broadcasting

    The first broadcast of music was made during a demonstration on 13 August 1919 by Ernest Fisk (later Sir Ernest) of AWA – Amalgamated Wireless (Australasia).A number of amateurs commenced broadcasting music in 1920 and 1921. [3]

  9. Sound film - Wikipedia

    en.wikipedia.org/wiki/Sound_film

    The first feature film originally presented as a talkie (although it had only limited sound sequences) was The Jazz Singer, which premiered on October 6, 1927. [2] A major hit, it was made with Vitaphone, which was at the time the leading brand of sound-on-disc technology. Sound-on-film, however, would soon become the standard for talking pictures.