Radio Timeline By Jaassonnnn Jan 1, 1888 Heinrich Hertz detects and produces radio waves. Jan 1, 1894 Marchese Guglielmo Marconi builds his first radio equipment, a device that will ring a bell from 30 ft. away. Jan 1, 1900 American scientist R.A. Fessenden transmists human speech via radiowaves. Jan 1, 1905 Marconi invents the directional radio antennae. Jan 1, 1906 First radio program of voice and music broadcast in the U.S. Jan 1, 1919 Shortwave radio is developed.RCA is founded. Jan 1, 1920 KDKA broadcasts the first regular licensed radio broadcast out of Pittsburgh, PA. Jan 1, 1921 RCA starts operating Radio Central on Long Island. Jan 1, 1928 A radio statio in NYC, WRNY begins to broadcast television shows. Jan 1, 1935 FM radio is born, but only in mono. Jan 1, 1943 The UM decides it needs an FM station Jan 1, 1953 Advertising is accepted on WCBN-AM. Jan 1, 1961 FCC approves FM stereo broadcasting, which spurs FM development. Jan 1, 1972 January 23 :WCBN-FM 89.5 FM is born, broadcasting at 10 watts. Jan 1, 1980 CBN plays "It's my Party" by Leslie Gore for 18 hours straight the day after Reagan is elected. Jan 1, 1993 In the US, FM radio stations begin to use the RDS
