November 11, 1940: A popular radio show 'Mandrake the Magician'

November 11, 1940: Mandrake the Magician aired on Mutual for the first time, and the song ‘invovo legem magicarum’ (I invoke the laws of magic) was also broadcast for the very first time on the show.

Mandrake the Magician was a famous radio kids serial established around the United States. The broadcast lasted for about 15 minutes. The radio show featured Raymond Edward Johnson, the unique host on Inner Sanctum, and ran for a year-and-a-half.