Here is a seasonal piece from Imaginative Conservative on how St Nicholas became Santa Claus
How did a fourth century heretic slapping bishop from Southern Turkey wind up being a fat, Coca-Cola-swigging American elf?
St. Nicholas was born into a wealthy Christian family in the third century. His parents died in a plague, and having inherited the family fortune, he decided to obey the radical call of Christ and give it to the poor. So he became famous for his generosity to those in need, his love for children, and his concern for sailors and ships.
Bishop Nicholas was exiled and imprisoned during the persecutions under the Emperor Diocletian, and after his release, attended the Council of Nicaea in AD 325 where he famously lost his temper and slapped the heretic Arius in the face. He died December 6, AD 343 in Myra and was buried in his cathedral church. Legends grew up about his generosity, and throughout the Middle Ages he became one of the most popular and wonder-working saints across Europe.
Now “jolly old St. Nick,” aka Santa Claus, is a secular figure used to promote godless good cheer and commercial consumerism. What happened?
Go here for the full article.