It was on October 27, 1920 that Westinghouse received word from the government that they were given the call letters “KDKA” and allowed to broadcast at 600 meters with 200 watts for unlimited time. On November 2, 1920, those few who actually had radio sets were able to hear a four-hour broadcast of election results, and listened to Leo Rosenberg read bulletins telling listeners that Harding and Coolidge had won the national election. They found out that news well before those waiting for the morning newspapers. KDKA broadcast from a shack on the roof of a Westinghouse-owned building in Pittsburgh. On that night, 89 years ago, KDKA-AM (1020) became the first officially licensed radio station to regularly broadcast. Read more about the history of KDKA here.