February 14 annually is popularly known worldwide as the Saint Valentine's day and often simply Valentine's Day. Over the years the day has been annually celebrated all over the world by lovers who set it out to reassure their partner while others use it as an opportunity to express themselves.
There have been several version origin of St. Valentines but the commonest one is the one that portrays Valentine as a priest who refused an unattested law attributed to Roman Emperor Claudius II, allegedly ordering that young men remain single. The Emperor supposedly did this to grow his army, believing that married men did not make for good soldiers. The priest Valentine, however, secretly performed marriage ceremonies for young men. When Claudius found out about this, he had Valentine arrested and thrown in jail.
There is an additional modern embellishment to The Golden Legend, provided by American Greetings to History.com, and widely repeated despite having no historical basis whatsoever. On the evening before Valentine was to be executed, he would have written the first "valentine" card himself, addressed to the daughter of his jailer, who was no longer blind, signing as "From your Valentine.