Little is verifiable about the historical Valentine beyond fragmentary church records, but tradition places his execution in Rome around 269 AD for defying imperial edicts, possibly by secretly marrying Christian couples. Centuries later, the Catholic Church linked his feast day to romantic love, transforming an obscure martyr into the patron saint of a holiday now marked by candy, cards, and flowers worldwide.
The facts are thin and the legends thick. Roman martyrology records at least one, possibly two or three, Christians named Valentine executed on February 14th in the 3rd century, during a period when the empire periodically persecuted the faith. One popular story holds that Valentine was a priest who defied Emperor Claudius II's ban on soldiers marrying by performing secret weddings, and was beheaded for it along the Via Flaminia.
Another tale, added later, claims Valentine restored the sight of his jailer's blind daughter and left her a note signed 'from your Valentine' before his execution, the supposed origin of the signature phrase still scrawled on cards today.
The romantic association didn't solidify until the Middle Ages. Geoffrey Chaucer's 1382 poem 'Parliament of Fowls' linked the date to birds choosing mates, and by the 1700s the English and French were exchanging handwritten notes. What began as a somber feast day for a martyred priest became, through centuries of accretion and commercial enthusiasm, one of the most lucrative and universally recognized holidays in the world.