Oh Yeah. It’s Friday the 13th too!
There have been a number of events known as “Black Fridays” in history. Usually, these events are devastating.
Some historians propose that the origin of the “Black Friday” was the simultaneous arrest of hundreds of Knights Templars on October 13, 1307 (Friday), to be later tortured into “admitting” heresy.*
*source: Yahoo! Answers – What is the history behind Friday 13th?