Is Festivus a Real Holiday?

I was reading about whether Festivus is a real holiday and found out that it is still a new holiday developing traditions. Most of Festivus' traditions are based on a Seinfeld episode but I don't know whether it's a real holiday or not. The TV show Seinfeld helped popularize this sort of holiday and it's a counter X-Mass date that Frank Costanza created on Seinfeld. Can anyone tell me with certainty if Festivus is a real holiday or not?

Yes, Festivus is a real holiday. Is is celebrated on the 23rd of December. As it is a real holiday, most of the celebrations today involve a party with a feast, which can consist of whatever the party holders decide. There is no determined meal like turkey at Thanksgiving. The decoration is an aluminum pole that is set up like a Christmas tree. A Festivus Fruitcake is on display for all to view but not eat which is funny. So, in conclusion, even though many think that Festivus is fake and just a way to have fun, the truth is it is a real holiday.