WWJ radio started as Detroit experiment: How it's changed in 100 years
Radio broadcast 1920 hi-res stock photography and images - Alamy
100 years later: KDKA's celebration to reenact historic first broadcast of 1920 election results | Pittsburgh Post-Gazette
Bill Eggert | Centennial of commercial radio began in Pittsburgh | News | tribdem.com
KDKA Radio Vintage Microphone Pittsburgh | Vintage microphone, Radio station, Vintage
Media Confidential: November 2 Radio History
Video: celebrating 100 years of KDKA Radio
KDKA (AM) - Wikipedia
KDKA: Broadcasting's Pioneer Station | Pennsylvania Center for the Book
1920's History Project by Katie Last Name
Pre-Broadcasting
Constructing the First “Real” Radio Station - Radio World
KDKA (AM) - Wikipedia
1920: First Commercial Radio Station KDKA | History of Innovation
First KDKA radio broadcast sparked a revolution | Local News | observer-reporter.com
First KDKA radio broadcast sparked a revolution | Local News | observer-reporter.com
Nov 2, 1920: First Commercial Radio Broadcast in the U.S. - YouTube
The Development of Radio | American Experience | Official Site | PBS
Radio Station KDKA Historical Marker
The night Pittsburgh transformed the world | Pittsburgh Post-Gazette
Sept. 29, 1920: Radio Goes Commercial | WIRED
CANADA INVENTED COMMERCIAL RADIO 100 YEARS AGO - The Wayback Times
KDKA | radio station, Pittsburgh, Pennsylvania, United States | Britannica
KDKA's century of radio is filled with broadcasting firsts and iconic personalities | TribLIVE.com
