Tonight Festivus is celebrated. Conceived of by author Daniel O’Keefe and celebrated as far back as 1966, the date celebrates the anniversary of Mr. O’Keefe’s first date with his future wife, Deborah. The holiday was made famous in 1996 when Daniel’s son, Dan, wrote it into a Seinfeld episode he co-wrote called “The Strike”. Holiday rituals include an unadorned aluminum Festivus pole, Airing of Grievances and Feats of Strength.