The definition and history as written on Wikipedia:
Frisbees are disc-shaped objects, which are generally plastic and roughly 20 to 25 centimeters (8-10 inches) in diameter, with a lip. The shape of the disc, an airfoil in cross-section, allows it to fly by generating lift as it moves through the air while rotating. The name Frisbee is a registered trademark of the Wham-O toy company, but is often used generically to describe all flying discs.
Flying discs are thrown and caught for recreation, and as part of many different flying disc games. A wide range of flying disc variants are available commercially. Disc golf discs are usually smaller but denser and are tailored for particular flight profiles to increase/decrease stability and distance. Disc dog sports use relatively slow flying discs made of more pliable material to better resist a dog's bite and prevent injury. Ring shaped discs are also available which typically fly significantly farther than any traditional flying disc. There are illuminated discs meant for night time play which use phosphorescent plastic, or battery powered light emitting diodes. There are also discs that whistle when they reach a certain velocity in flight.
The Frisbie Pie Company (1871-1958) of Bridgeport, Connecticut, made pies that were sold to many New England colleges. Hungry college students soon discovered that the empty pie tins could be tossed and caught, providing endless hours of sport. Many colleges have claimed to be the home of "he who was first to fling." Yale College has argued that in 1820, an undergraduate named Elihu Frisbie grabbed a passing collection tray from the chapel and flung it out into the campus, thereby becoming the true inventor of the Frisbee. That tale is dubious, as the "Frisbie's Pies" origin is well-documented. Walter Frederick Morrison claims that it was a popcorn can lid that he tossed with his girlfriend (and later wife) Lu at a 1937 Thanksgiving Day gathering in Los Angeles that inspired his interest in developing a commercially-produced flying disc. In 1946 he sketched out plans for a disc he called the Whirlo-Way, which, co-developed and financed by Warren Franscioni in 1948, became the very first commercially produced plastic flying disc, marketed under the name Pipco Flyin-Saucer. Morrison had just returned to the US after World War II, where he had been a prisoner in the infamous Stalag 13. His partnership with Franscioni, who was also a war veteran, ended in 1950, before their product had achieved any real success.
In 1955, Morrison produced a new plastic flying disc called the Pluto Platter, to cash in on the growing popularity of UFOs with the American public. The Pluto Platter became the design basis for later flying discs. In 1957, Wham-O began production of more discs (then still marketed as Pluto Platters). The next year, Morrison was awarded US Design Patent 183,626 for his flying disc.
Wham-O co-founder, Richard Knerr, in search of a catchy new name to help increase sales, and hearing of the colloquial name "Frisbie", gave the disks the trademarkable brand name "Frisbee" (which is pronounced the same as "Frisbie") on June 17, 1957. Sales soared for the toy, which was marketed as a new sport. In 1964, the first "professional" model went on sale. Ed Hedrick was the sales manager at Wham-O who patented the company's design for the aerodynamically improved modern Frisbee (US Patent 3,359,678).[2]
