The holiday was invented
in 1966 by Dan O'Keefe - whose son Daniel became
a writer for the TV show Seinfeld. In 1997 he wrote
the episode where George's father insists on celebrating Festivus
rather than the more burdensome Christmas.
Wikipedia reports that the
writer's father discovered
the holiday in a book of obscure European
celebrations. (He later wrote a book about "the social theory of magic"
as a ritual with real social significance.) He was also inspired by
Samuel Beckett's play "Crapp's Last
Tape," in which an elderly man makes a tape recording of
his grievances throughout his life.
So next year when December 23 rolls around, be sure to shout out: Happy
It's even better than Chrismukkah. (As seen on The O.C.)