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| Variety, 15-August-1945 |
Detroit radio station WWJ claims to be the first commercial broadcasting station in the United States, perhaps in the world. 100 years ago today, on 20-August-1920, the station, then known as 8MK, began daily broadcasts as the "Detroit News Radiophone." There is a footnote in this 25th anniversary ad from Variety: "*WWJ acknowledges the pioneering research efforts of such scientists as Dr. Lee de Forest, Dr. Frank Conrad and others operating under experimental and amateur licenses."
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