@McTag,
" but you may be right to a certain point the name Santa Claus seems to have started in the US"
My quote so I am not doubting - just the origin of St. Nick where Santa dervived from...
"Although St Nicholas is usually acknowledged as the 'original Santa Claus', we actually know vanishingly little about him for certain; indeed, his very existence has sometimes been called into question, due to the lack of secure references to him in contemporary sources. All that can be said with any degree of confidence is that St Nicholas probably lived in the fourth-century in the Lycian port of Myra, in the south-west of modern Turkey, and that he was a bishop."
Turkey is not the US.