traced its history to a pre-World War One station operated by Charles "Doc" Herrold in San Jose, California. The station made test audio transmissions in 1909, and began broadcasting weekly concerts in 1912. Herrold's San Jose broadcasts were suspended during World War One when the U.S. government prohibited the operation of civilian radio stations, and after the war ended he did not return to the airwaves until May 1921. His experimental station was re-licensed in December 1921 as KQW, which later moved to San Francisco and became KCBS in 1949. Baudino and Kittross argued that this post-World War One gap disqualified KCBS from "oldest station" consideration, something neither KQW nor KCBS has agreed with, as program schedules for KQW appearing in 1925 included the slogan "Pioneer Broadcasting Station of the World." In 2009 KCBS 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." At the same time, KCBS adopted the slogan "The World's First Broadcasting Station". See also Media in Detroit Detroit News Orchestra References Further reading The Life and Works of Dr. Lee De Forest by C. S. Thompson (New York: Smedley Press, 1931) "WWJ, 'The World's First Radio Station': A History" (Thesis for the Degree of Master of Arts) by Robert Preston Rimes, Michigan State University, 1963 (MSU.edu) "WWJ—Pioneer in Broadcasting" by Cynthia Boyes Young, Michigan History'', December 1960, (vol. 44, no. 4), pages 411-433, External links WJ (AM) All-news radio stations in the United States Radio stations established in 1920 1920 establishments in Michigan Michigan Wolverines men's basketball Audacy, Inc. radio stations Radio stations licensed before 1923 and still broadcasting