Why Do We Celebrate Valentine’s Day? The world celebrates Valentine’s Day – the winter holiday of love – as a religious remembering of St Valentine, a Roman priest that married couples against Emperor Claudius’ order. Claudius was involved in endless wars with the enemies of the largest ancient empire and needed soldiers. In his vision, a soldier who had a wife and family was not reliable. So he declared marriage illegal. Valentine, a young priest in Umbria (Umbri, in Roman times), cared more about young love than he cared about an emperor’s orders and kept marrying couples secretly. In the...