Originally Posted by Vendzilla

Firday the 13th has many supposed origins, my favorite is

On Friday, October 13, 1307 (a date sometimes linked with the origin of the Friday the 13th superstition)King Philip ordered de Molay and scores of other French Templars to be simultaneously arrested. The arrest warrant started with the phrase : "Dieu n'est pas content, nous avons des ennemis de la foi dans le Royaume" ["God is not pleased. We have enemies of the faith in the kingdom"]. The Templars were charged with numerous offences (including apostasy, idolatry, heresy, obscene rituals and homosexuality, financial corruption and fraud, and secrecy).