celebrated its 100th birthday with a yearlong series of events throughout the Bay Area, including the public dedication of a plaque commemorating the "Centennial Celebration of the World's First Broadcasting Station". Around April 1920 the "California Theater Station" in San Francisco, originally under an Experimental license as 6XC, inaugurated a wide-ranging selection of daily broadcasts. The next year inventor Lee de Forest wrote that this was the "first radio-telephone station devoted solely" to broadcasting to the public. The station was relicensed as KZY late in 1921, then deleted in early 1923. Beginning in August 1920, the Detroit News began daily broadcasts under an Amateur license as 8MK, highlighted by election returns broadcast on August 31, 1920. In 1921 the newspaper received a broadcasting license, as WBL, which a few months later changed to its current call letters, WWJ. Among educational institutions, Grove City College in Grove City, Pennsylvania began regular radio concerts in March 1920. In 1922 the College received a broadcasting license, WSAJ, which celebrated its 50th anniversary in April 1970, six months before WRUC. The AM broadcasting station was deleted in 2006, however, the College continues to operate WSAJ-FM. In addition, the Radio Club at Carnegie Institute of Technology (now Carnegie Mellon University) in Pittsburgh, Pennsylvania broadcast a series of dance music broadcasts in May 1920. Carnegie established its own carrier current station, "WRCT", in 1949, and added an FM station with the same call letters in 1974. References External links Union College (New York) Schenectady, New York RUC RUC Radio stations established in 1920 1920 establishments in New York (state)