 Effective December 1, 1921 the U.S. Department of Commerce, which regulated radio communication at this time, adopted regulations to formally establish a broadcast service category, which set aside the wavelength of 360 meters (833 kHz) for "entertainment" broadcasting, and 485 meters (619 kHz) for "market and weather reports".By mid-1922 hundreds of radio stations had been licensed.However Kentucky was one of the last states to get a station, and when the "Louisville Courier-Journal" received a license for WHAS on July 13, 1922, it was 45th out of the then-48 states to join the broadcasting ranks.