---- the opening phrases of a celebratory article published by the Times News Service in the Times of Oman (Oman), 8th February 2017 :-
'There are many theories on how Valentine’s Day began. The holiday may go back to ancient Roman times, when a festival called Lupercalia was held on February 15. Lupercalia was a celebration honoring Juno, the Roman deity of women and marriage. During the festival, women wrote love notes called billets and put them in a large jar or urn. Each man would select a note and pursue the woman whose name was on it.
Another theory is that Valentine’s Day began with one or more early Christian saints. According to one legend, the Roman Emperor Claudius II (AD 200s) forbade all marriages, believing that single men made better soldiers.
But a priest named Valentine broke the law and married many couples in secret. Another story tells of an early Christian named Valentine who befriended children. When he was imprisoned by the Romans for his faith, Valentine’s little friends gave him notes and cards through his jail window. This may explain the tradition of exchanging cards on Valentine’s Day.