What is the history behind Friday 13th?

[aphanth]

http://au.answers.yahoo.com/question/index?qid=20061005171810AAiRhJc
http://en.wikipedia.org/wiki/Friday_the_13th
http://en.wikipedia.org/wiki/Black_Friday
http://news.bbc.co.uk/2/hi/uk_news/8582518.stm

Where did it start? How has it evolved?
I want to know a different story? in greece its tuesday the 13th. highly inlucky day because that day in May 1453, the turks won and took Konstantinoupoli (today Istanbul). it was the end of the Byzantium era and till today, that day is a black day

[momofkali]

I thought it was when Jason Voorhees drowned at Camp Crystal Lake?

Kidding

Will have to read this