Jan. 23, 1957: Walter Frederick Morrison, designer of the Frisbee, partners up with Wham-O, making it the sole manufacturer, promoter and distributor of his Pluto Platter.
June 17, 1957: Wham-O first uses the brand name Frisbee on the packaging of the Pluto Platter.
July 22, 1957: Wham-O submits a patent for the Frisbee design in Morrison's name (Serial No. 47,035).
May 26, 1959: Frisbee receives Registered Trademark No. 679186.
1964: "Steady Ed" Headrick, vice president of Marketing at Wham-O, organizes the International Frisbee Association and introduces a new Professional Model, to promote a sportier image.
1968: A group of students from Columbia High School in Maplewood, N.J., applies rules to a game of catch with a Wham-O Master Disc and invents Ultimate Frisbee.
1969: Frisbee serves its country when the U.S. Navy tests Frisbee discs as vehicles for keeping flares aloft.
1974: Freestyle Frisbee is recognized as an official sport when the game becomes an event at the World Flying Disc Federation Tournament in Toronto. Frisbee Dog also enters the world of sports when Alex Stein and his dog, Ashley Whippet, hop the fence at a Dodgers game, bringing it to a halt while Stein throws at speeds of 35 mph and Whippet wows the fans with nine-foot jumps.
1975: "Steady Ed" Headrick introduces the game of Frisbee Golf by constructing the first Frisbee Golf course at Oak Grove Park in Pasadena, Calif., and organizing the Professional Disc Golf Association.
1978: The Frisbee Hall of Fame is opened in Houghton, Mich., and Walter Frederick Morrison is inducted as an inaugural charter member.
1979: The Ultimate Players Association is formed to promote and support the sport of Ultimate Frisbee and its players.
1984: Hampshire College in Amherst, Mass., awards the first bachelor's degree in Frisbee to John Dwork.
1985: The World Flying Disc Federation convenes in Heisenberg, Sweden, for its first international Congress.
1993: The President's Council on Physical Fitness and Sports accepts flying-disc sports as a new category for the Presidential Sports Awards.
1997: The Wham-O Frisbee Disc Max Flight is thrown more than 350 feet and caught at the Frisbee U.S. Open Flying Disc Championships, setting a world record.
2001: Ultimate Frisbee is recognized at the 2001 World Games in Akita, Japan, as an official sport.
2006: Morrison publishes a history of the Frisbee called "Flat Flip Flies Straight! True Origins of the Frisbee."
2007: Frisbee celebrates 50 years of high-flyin' fun.
Sources: Wham-O Inc.