The Catholic Church recognizes at least three different saints named Valentine or Valentinus, all of whom were martyred. According to one legend, an imprisoned Valentine actually sent the first "valentine" greeting himself after he fell in love with a young girl--possibly his jailor's daughter--who visited him during his confinement. Before his death, it is alleged that he wrote her a letter signed "From your Valentine," an expression that is still in use today. Although the truth behind the Valentine legends is murky, the stories all emphasize his appeal as a sympathetic, heroic and--most importantly--romantic figure. By the Middle Ages, perhaps thanks to this reputation, Valentine would become one of the most popular saints in England and France.
Valentine's Day: A Day of Romance
Lupercalia survived the initial rise of Christianity and but was outlawed—as it was deemed “un-Christian”--at the end of the 5th century, when Pope Gelasius declared February 14 St. Valentine's Day. It was not until much later, however, that the day became definitively associated with love. During the Middle Ages, it was commonly believed in France and England that February 14 was the beginning of birds' mating season, which added to the idea that the middle of Valentine's Day should be a day for romance.Valentine greetings were popular as far back as the Middle Ages, though written Valentine's didn't begin to appear until after 1400. The oldest known valentine 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. (The greeting is now part of the manuscript collection of the British Library in London, England.) Several years later, it is believed that King Henry V hired a writer named John Lydgate to compose a valentine note to Catherine of Valois.
Typical Valentine's Day Greetings
In addition to the United States, Valentine's Day is celebrated in Canada, Mexico, the United Kingdom, France and Australia. In Great Britain, Valentine's Day began to be popularly celebrated around the 17th century. By the middle of the 18th, it was common for friends and lovers of all social classes to exchange small tokens of affection or handwritten notes, and by 1900 printed cards began to replace written letters due to improvements in printing technology. Ready-made cards were an easy way for people to express their emotions in a time when direct expression of one's feelings was discouraged. Cheaper postage rates also contributed to an increase in the popularity of sending Valentine's Day greetings.Americans probably began exchanging hand-made valentines in the early 1700s. In the 1840s, Esther A. Howland began selling the first mass-produced valentines in America. Howland, known as the “Mother of the Valentine,” made elaborate creations with real lace, ribbons and colorful pictures known as "scrap." Today, according to the Greeting Card Association, an estimated 1 billion Valentine’s Day cards are sent each year, making Valentine's Day the second largest card-sending holiday of the year. (An estimated 2.6 billion cards are sent for Christmas.) Women purchase approximately 85 percent of all valentines.
Taken from History Channel Website