Hmmm ~ from a certain perspective "Mainline Christians" consider Saturday to be the Sabbath, with the folks using Sunday not being "real Christians".
(I just love these religious custom treads ~ brings out the beast in people, eh?!)
I was interested in the historical development and nothing else. A Jewish friend of mine was talking about it and I really didn't know when this occurred or if it was connected to one of the books of the New Testament.
I really am surprised at all the sneering I've seen on this board.