Banked Track Roller Derby
How it started and how its going
While the sport has its origins in the banked-track roller-skating
marathons of the 1930s, Leo Seltzer and Damon Runyon are credited with
evolving the sport to its competitive form. Professional roller derby
quickly became popular; in 1940, more than 5 million spectators watched
in about 50 American cities.
Check out this video of modern roller derby in Rolling Stones
Magazine