I have some random ball facts.
In the 1600s, people used to believe that male beavers bit off their own testicles.
American football was invented by Native Americans.
Pinball was widely considered to be illegal gambling until the 1970s.
"Aelian fays that this Animal knowing that Men do hunt it only to get this Liquor of so great use in Physic, tears off its Testicles when it sees it self closely pursued by the Hunters, and leaves them to them as for its ransom." From "The natural history of animals: Containing the anatomical description of several creatures dissected, by the Royal academy of sciences at Paris." 1702.