2009 has three Friday the Thirteenths

The first Friday the Thirteenth of 2009 is in February. The first day of February falls on a Sunday. When a month begins on a Sunday then it has a Friday the Thirteenth. I still don't see why thirteen or Friday is unlucky either separately or together.

The idea that a day of the week or a number can be unlucky intrigues the writer in me. The reason for Friday the Thirteenth being unlucky calls for a little bit of research. What I do know is that the numeric root of thirteen if four, which isn't unlucky in itself. However, thirteen is considered unlucky, while the one and the three, which make up the thirteen are consider lucky numbers because they are odd numbers.