ST. NICHOLAS was a super-saint with an immense cult for most of the Christian past. There may be more icons surviving for Nicholas alone than for all the other saints of Christendom put together. So what happened to him? Where’s the fourth-century Anatolian bishop who presided over gift-giving to poor children? And how did we get the new icon of mass consumerism in his place?

Well, it’s a New York story.

In all innocence, the morphing began with the Dutch Christians of New Amsterdam, who remembered St. Nicholas from the old country and called him Sinte Klaas. They had kept alive an old memory  that a kindly old cleric brought little gifts to the poor in the weeks leading up to the Feast of the Nativity. While the gifts were important, they were never meant to overshadow the message of Jesus’s humble birth.

But today’s chubby Santa is not about giving to the poor. He has had his saintly garb stripped away. The filling out of the figure, the loss of the vestments, and his transformation into a beery fellow smoking a pipe combined to form a caricature of Dutch peasant culture. Eventually this Magic Santa (a suitable patron saint if there ever was one for the burgeoning capitalist machinery of the city) was of course popularized by the Manhattanite Clement Clarke Moore published in “A Visit From St. Nicholas,” in The Troy (New York) Sentinel on Dec. 23, 1823.

The newly created deity Santa soon attracted a school of iconographers: notable among them were Thomas Nast, whose 1863 image of a red-suited giant in Harper’s Weekly set the tone, and Haddon Sundblom, who drew up the archetypal image we know today on behalf of the Coca-Cola Company in the 1930s. This Santa was regularly accompanied by the flying reindeer: godlike in his majesty and presiding over the winter darkness like Odin the sky god returned.