Eros, god of love
Eros is the Greek word for romantic or sexual love, desire for the good and the beautiful. The term erotic is derived from eros. In Greek mythology, Eros was the god responsible for love, lust and sex. He was also worshipped as a fertility deity. Eros in Greek means romantic love and in ancient Greek means desire. In Freudian psychology, Eros is the life instinct innate in all humans and referred to in terms of Libido or Libidinal energy.Valentine's Day definition
Valentine's Day is a lovers day and is celebrated on February 14 as fees tidal of romance and affection. People send greeting cards called valentines to their sweethearts, their friends and members of their families. In Mongolia some schools the children hold a Valentine's party and place all the valentines in a box that they have made. At the end of the day, the teacher or one child distributes the valentines. Some students enjoy Valentine's Day dances and parties. Men often send their wives or sweethearts flowers or boxes of candy (sometimes they give presents instead of valentine greeting cards). February 14th, celebrated in various American and European countries by the exchange of valentines or love tokens.Valentine's Day
Valentine's Day is refered to Saint Valentine's Day. There were two Saints attributed to the naming of this day. Both Saints were imprisoned and killed for being Christians. First story is that one of the Saints wrote a letter to his jailer's daughter for her kindness and he signed his letter 'your Valentine'.
Many stories tell us that both Saints died on February 14, which in Roman times was the night before a festival called Lupercalia and probably somebody got attached to the modern day celebrations of Valentine's Day.
Today, it is a day to tell people you love them and exchange Valentine's cards.

