Post WWII: Radio flounders as television spawns.
1954: As radio struggles, and some stations shutter their doors, rock and roll comes along and saves radio. It's relevant again.
1959: Buddy Holly, Richie Valens, and The Big Bopper (J.P. Richardson) perish in a plane crash. Rock and roll's backbone is broken.
1960: Elvis Presley is drafted. He makes no recordings during his two years in the Army.
In the interim, rock tries different genres: Surf music, dance crazes (the Twist, etc.) making singers out of teenage TV stars. Nothing really works.
1964: With rock and roll being lethargic, Beatlemania & the British Invasion inject new life into pop music and pop culture. The Beatles save rock and roll, thus re-saving radio.
Ironically, the British Invasion artists expose American audiences to R&B music, something that had been right under their noses for decades. R&B is suddenly hip.
1967: FM radio, radio's longtime step sibling, comes of age when adventurous stations start playing rock and roll in place of longtime FM standard formats Elevator, Classical, and Middle of the Road standards. Rock and roll makes FM radio. A whole new era of broadcasting begins.
We have the Beatles to thank for saving rock and roll, helping FM radio's programming development, playing an instrumental part in the exposure of R&B music, Arena rock, and Stadium rock.
It's been 45 years since their first record release and in the time since, no one's touched them.