Origins of Friday the 13th

I decided this morning that I was curious as to the origin of Friday the 13th and why it's considered such an unlucky day. It especially peaked my interest because I found out that we don't only have ONE Friday the 13th this year, but THREE! This month is the second one, the first being in February, and then the final is in November. According to Wikipedia (which is not the best source in the world, but it will work) Friday the 13th occurs at least once, but not more than three times a year. So who knows how long it will be before there is another year where we will have three! (2012 according to Wikipedia)

There are lots of theories on the internet that you can find in regards to how it became so unlucky. The one I found the most interesting was this one:

The number twelve, in numerology, is considered the number of completeness, as reflected in the twelve months of the year, twelve signs of the zodiac, twelve hours of the clock, twelve tribes of Israel, twelve Apostles of Jesus, twelve Gods of Olympus, etc., whereas the number thirteen was considered irregular, transgressing this completeness. There is also a superstition, thought by some to derive from the Last Supper or a Norse Myth, that having thirteen people seated at a table will result in the death of one of the diners.

Fridays have been considered an unlucky day since the 14th century's The Canterbury Tales, and many other professions have regarded Friday as an unlucky day to undertake journeys or begin new projects. Black Friday has been associated with stock market crashes and other disasters since the 1800s. It has also been suggested that Friday has been considered an unlucky day because, according to Christian scripture and tradition, Jesus was crucified on a Friday.

Wiki also goes on to talk about the rate of accidents reported on Friday the 13th. They are actually quite a bit lower because people tend to be more cautious and stay at home. So, there you have it. That's my little bit of research on Friday the 13th. Be safe!