Actually, the history of Festivus predates Seinfeld by several decades. It was an actual annual event in the life of a a Seinfeld writer, and was promoted there to bring grievances to the world.
Read http://www.nytimes.com/2004/12/19/fashion/19FEST.html?_r=1
On Wednesdays, we have bagels and donuts at my work. Often when I get in, the smiley face cookies have been ravaged by other coworkers and often only one or two broken pieces are left. Today I got in and was able to grab 2 smiley face cookies!
It’s a Festivus miracle!