Countdown to Valentine's Day has officially begun for all the boys and girls in love. Feel free to show your romantic side and express your emotions with Valentines Day Live Wallpaper, after all, this is the season of love. The history of "Valentine's Day" - and the story of its patron saint - is shrouded in mystery. We do know that February has long been celebrated as a month of romance, and as we know it today, contains vestiges of both Christian and ancient Roman tradition. But who was Saint Valentine, and how did he become associated with this ancient rite? Valentine greetings were popular as far back as the Middle Ages. The oldest known still in existence today was a poem written in 1415 by Charles, Duke of Orleans, to his wife while he was imprisoned in the Tower of London following his capture at the Battle of Agincourt. Several years later, it is believed that King Henry V hired a writer named John Lydgate to compose a valentine message to Catherine of Valois.