What about Valentine's Day?

There are several interpretations as to the origin of Valentine's Day. Let the romantic in you decide.

The Feast of Lubercus

The first interpretation has this celebration originating as a pagan tradition in the third century. During this time hordes of hungry wolves roamed outside of Rome where shepherds kept their flocks. The God Lupercus, was said to watch over the shepherds and their flocks and keep them from the wolves. Every February the Romans celebrated a feast called Lupercalia to honor Lupercus so that no harm would come to the shepherds and their flocks. Also during Lupercalia, but in honor of the goddess Juno Februata, the names of young women were put into a box and names were drawn by lot. The boys and girls who were matched would be considered partners for the year, which began in March. This celebration continued long after wolves were a problem to Rome.

Read more interpretations here.