On this day in 1891, Thomas A. Edison patented "transmission of signals electrically" (radio).

On this day in 1945, The mystery voice of "Mr. Hush" was introduced to the audience of the radio show, "Truth or Consequences", which was hosted by Ralph Edwards.

On this day in 1958, the first radio broadcast from space occurred when the voice of President Dwight D. Eisenhower said, "To all mankind, America's wish for Peace on Earth & Good Will to Men Everywhere".

On this day in 1966, Pirate Radio Phoenix, Worcester, Massachusetts, broadcast for the first time.

n this day in 1980, the Mutual Broadcasting Service cancelled the "Sears Radio Theater" program.

On this day in 1985, Phil Donahue and a Soviet radio commentator hosted a special program called the "Citizens’ Summit" via satellite Television.