This photo, in the January 1921 issue of Talking Machine World, shows an early radio broadcast taking place a century ago in Detroit.

The magazine noted that a number of well-to-do residents and members of the Detroit Radio Association were able to tune in radio concerts and dances, furnished by the Edison phonograph, “providing diversion simultaneously in a number of homes, of which some actually are located between four and five miles away.” In some cases, musicians played in unison with the phonograph.

Among the younger set, radio dances had taken a permanent place as a popular pastime, “in the home of those fortunate enough to have had the necessary receiving apparatus installed.”