There is a second explanation as to why Christmas falls on December 25, a spiritual one. Today's post is taken from an article written for the Biblical Archaeology Society.
Divine Heredity
When I was a young girl, there was an enormous social stigma attached to having a baby when you weren’t married. You got sent away to extended family, had the baby in secret, started another life, or gave the baby up for adoption, very privately. Children raised out of wedlock didn’t have the same legal rights as children born to or adopted by a married couple.