| Year | Month | Day | Event |
|---|---|---|---|
| 1896 | Mar | 24 | A.S. Popov Makes First Radio Transmission |
| 1900 | Mar | 07 | German Liner Sends Wireless Signals To Shore |
| 1920 | May | 20 | XWA Broadcasts First Programming |
| 1922 | Feb | 08 | Harding Installs First White House Radio Set |
| 1924 | Feb | 22 | Coolidge First In White House Radio Broadcast |
| 1927 | Sep | 18 | Columbia Broadcasting System Goes On Air |
| 1930 | Jul | 31 | Shadow Airs For The First Time |
| 1941 | Mar | 01 | Nashville's W47NV Becomes First U.S. FM Station |
| 1948 | Aug | 10 | Candid Microphone Becomes Candid Camera On TV |
| 1978 | Mar | 08 | Hitchhiker's Guide Transmitts First Radio Episode |
| 1983 | May | 18 | Ireland Cracks Down On Pirate Radio |
| 1987 | Jul | 01 | WFAN, The World's First All-sport Radio Station |