Discordianism

Discordianism is a postmodern religion in which disorder (also called discord) is as important as order, existing within chaos. It was founded circa 1958–1959 by Malaclypse the Younger, who published its most important text: the Principia Discordia.

The Sacred Chao and Five fingered hand of ERIS are the most recognized symbols of Discordianism.
Discordian calendar
The Discordian calendar (also called Erisian calendar) is an alternative calendar used by followers of the discordian religion

The discordian year 1 YOLD is 1166 BC.

Implementations
ddate is a linux program that prints the current date in the discordian calendar, in August 2011, ddate was made optional, and was removed in 2012, being readded in 2013

 Other websites 
 PrincipiaDiscordia.com – contains the Principia Discordia in HTML.

Category:New religious movements