Valentine's Day by Carlos

Valentine's Day is on 14th of February and it is coming soon. It is the day of lovers. Everybody is nervous about what they are going to get or give from/to their boy/girl friends. But where does this tradition come from? Nowadays, many people say that it is for making people buy things.
There are other suggestions about origin of Valentine's Day. In Northern Europe, many years ago people discovered that 14th February was the day when the birds made babies. Therefore, people called this day as the day of lovers. And 'Valentine' was the name of the village where the tradition took its name from.