[ExSoldier]

Wait, I thought that legend ocurred because the French Revolution began on Friday the 13th in 13something and it started simultaneously all over France because the Masons/Templars had it preplanned that way. They had an old enemity with the Knights of Malta and those folks were specifically targeted in the initial round of fighting. I'm not a "world history" guy (although I have taught it in the past) when I teach core curriculum, I'm more of an American History person; and American Government.

[2 Kool 2 Be 4-Gotten]

http://www.britannia.com/history/bb1312.html
is a link that at least documents that October 13,
1307 fell on a Friday. A Google search finds multiple
references to this as the origin of the superstition but
I guess there is no way to really no for sure.