If you need something to take up about an hour of your workday, check out this interactive timeline and additional links to various articles about option football.

https://www.sbnation.com/a/option-football-history

From the article -

FISHER DEBERRY AND KEN HATFIELD “BREAK THE WISHBONE” AT AIR FORCE
DeBerry was a successful option coach at Wofford, Appalachian State, and as an Air Force assistant, but he takes the offense to the next level by “breaking the Wishbone” and flexing his slotbacks out wide, near the tackles.

Deemed the Flexbone, this forces defenses to defend more of the field horizontally, which would inspire much of the modern spread offense. Air Force’s Flexbone carries the Falcons as high as fifth in the AP poll over two highly successful decades.