The history of Valentine's Day — and its patron saint — is shrouded  in mystery. But we do know that February has long been a month of  romance. St. Valentine's Day, as we know it today, contains vestiges of  both Christian and ancient Roman tradition. So, who was Saint Valentine  and how did he become associated with this ancient rite? Today, the  Catholic Church recognizes at least three different saints named  Valentine or Valentinus, all of whom were martyred.
One legend contends that Valentine was a priest who served during the third century in Rome.  When Emperor Claudius II decided that single men made better soldiers  than those with wives and families, he outlawed marriage for young men —  his crop of potential soldiers. Valentine, realizing the injustice of  the decree, defied Claudius and continued to perform marriages for young  lovers in secret. When Valentine's actions were discovered, Claudius  ordered that he be put to death.
Other stories suggest that Valentine may have been killed for  attempting to help Christians escape harsh Roman prisons where they were  often beaten and tortured.
According to one legend, Valentine actually sent the first  "valentine" greeting himself. While in prison, it is believed that  Valentine fell in love with a young girl — who may have been his  jailor's daughter — who visited him during his confinement. Before his  death, it is alleged that he wrote her a letter, which he signed "From  your Valentine," an expression that is still in use today. Although the  truth behind the Valentine legends is murky, the stories certainly  emphasize his appeal as a sympathetic, heroic, and, most importantly,  romantic figure. It's no surprise that by the Middle Ages, Valentine was one of the most popular saints in England and France.
While some believe that Valentine's Day is celebrated in the middle  of February to commemorate the anniversary of Valentine's death or  burial — which probably occurred around 270 A.D — others claim that the  Christian church may have decided to celebrate Valentine's feast day in  the middle of February in an effort to "christianize" celebrations of  the pagan Lupercalia festival. In ancient Rome,  February was the official beginning of spring and was considered a time  for purification. Houses were ritually cleansed by sweeping them out  and then sprinkling salt and a type of wheat called spelt throughout  their interiors. Lupercalia, which began at the ides of February,  February 15, was a fertility festival dedicated to Faunus, the Roman god  of agriculture, as well as to the Roman founders Romulus and Remus.
To begin the festival, members of the Luperci, an order of Roman  priests, would gather at the sacred cave where the infants Romulus and  Remus, the founders of Rome, were believed to have been cared for by a  she-wolf or lupa. The priests would then sacrifice a goat, for  fertility, and a dog, for purification.
The boys then sliced the goat's hide into strips, dipped them in the  sacrificial blood and took to the streets, gently slapping both women  and fields of crops with the goathide strips. Far from being fearful,  Roman women welcomed being touched with the hides because it was  believed the strips would make them more fertile in the coming year.  Later in the day, according to legend, all the young women in the city  would place their names in a big urn. The city's bachelors would then  each choose a name out of the urn and become paired for the year with  his chosen woman. These matches often ended in marriage. Pope Gelasius  declared February 14 St. Valentine's Day around 498 A.D. The Roman  "lottery" system for romantic pairing was deemed un-Christian and  outlawed. Later, 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 February —  Valentine's Day — should be a day for romance. The oldest known  valentine still in existence today was a poem written 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, which was written in 1415, is 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.
In Great Britain, Valentine's Day began to be popularly celebrated  around the seventeenth century. By the middle of the eighteenth century,  it was common for friends and lovers in all social classes to exchange  small tokens of affection or handwritten notes. By the end of the  century, 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 to sell the first  mass-produced valentines in America.
According to the Greeting Card Association, an estimated one billion  valentine 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.)
Approximately 85 percent of all valentines are purchased by women. In  addition to the United States, Valentine's Day is celebrated in Canada,  Mexico, the United Kingdom, France, and Australia.
Valentine greetings were popular as far back as the Middle Ages  (written Valentine's didn't begin to appear until after 1400), and the  oldest known Valentine card is on display at the British Museum. The  first commercial Valentine's Day greeting cards produced in the U.S.  were created in the 1840s by Esther A. Howland. Howland, known as the  Mother of the Valentine, made elaborate creations with real lace,  ribbons and colorful pictures known as "scrap."