Reginald A. Fessenden

Born: 1866
Birthplace: East Bolton, Quebec, Canada

Apparatus for signaling by electromagnetic waves—Canadian Reginald Fessenden made history in 1906 when he broadcast the world's first radio program through wireless transmission. He is known not just for the first radio transmission of the human voice, but for over 200 additional patents, including a version of microfilm and an early form of sonar. (2000)

Died: 1932

Enrico FermiThe National Inventors Hall of FameEdith Flanigen