The Day of San Valentin is a traditional celebration in which the fiancès, enamored or spouses express their love or affection mutually. It is celebrated the 14 of February, onomástico of San Valentin. In many countries the Day of the Enamored ones is called to him. Particularly in Colombia, by commercial reasons, this celebration is celebrated the third weekend of September and it knows like Day of the Love and the Friendship. At the present time, it is celebrated by means of the known note interchange of love like "the Valentins", with symbols as the symbolic form of the heart and Cupido. From century XIX the produced postal interchange was introduced massively. To this practice giving was added another type of gifts like roses and chocolates, normally given to the women by the men. In the United States, this celebration also began to associate with a greeting platonic love of "Happy Valentinés", sent by the men to its friends - rarely to its friends -.

credits: http://es.wikipedia.org/wiki/Día_de_San_Valentín