 WEW was first licensed as a broadcasting station on March 23, 1922 to Saint Louis University (SLU), however, previous radio experimentation at the University dated back to 1912.In February 1915, SLU was issued a license to operate a "Technical and Training School" station assigned the call sign of 9YR, and in May 1916 this station's license was changed to an "Experimental" authorization, with a new call sign of 9XY.These early operations used Morse code to transmit seismological and weather information.