kassandra

Heinrich Hertz detects and produces radio waves.

Apr 4, 1888

Marchese Guglielmo Marconi builds his first radio equipment, a device that will ring a bell from 30 ft. away

Apr 4, 1894

American scientist R.A. Fessenden transmists human speech via radiowaves

Apr 4, 1900

First radio transmission of music at Graz, Austria

Apr 4, 1904

First radio program of voice and music broadcast in the U.S. (by R.A. Fessenden)

Apr 4, 1906

KDKA broadcasts the first regular licensed radio broadcast out of Pittsburgh, PA.

Apr 4, 1920

March: WWJ, an AM station in Detroit, offers the University of Michigan broadcasting rights for extension lectures.

Apr 7, 1922

Dreese instead runs experimental station WCBC as a project in the basement of West Engineering. This project died at the end of the academic year.

Apr 7, 1924

WJR-AM offers educational broadcasting spots to the UM. The UM continued to broadcast on WWJ as well. WJR-AM offers educational broadcasting spots to the UM. The UM continued to broadcast on WWJ as well.

Apr 7, 1925

A radio statio in NYC, WRNY begins to broadcast television shows

Apr 7, 1928

In August 1953, Presley walked into the offices of Sun Records.

Apr 9, 1953

the beatles

Apr 9, 1960

From 1960, the Beatles built their reputation playing clubs in Liverpool and Hamburg over a three-year period. Manager Brian Epstein moulded them into a professional act and producer George Martin enhanced their musical potential.

United States radio stations begin broadcasting in stereophonic sound.

Apr 9, 1962

Tennessee to commemorate the site of the KWEM Radio Station Saturday Night Jamboree, the location of the first major public appearance by Elvis Presley before signing with Sun Records a year later

Apr 7, 1973

In Paris an experimental digital FM transmitter begins operation

Apr 9, 1992