Wouldn't that make sense in a context where the useful number of 6 counts the days reserved for the affairs of mankind, and the seventh was an extra day reserved for rest or worship? I.e. the background of our 7 day week
I'm sure that's religious revisionism (just like the Christmas holiday). Like so many time-based things, the 7-day week comes from the cycles of the Moon, and goes back at least as far as the Babylonians.
Right, religious zealots have been ever revising the story of human history, which has been mostly secular peoples that practiced empiricism and appreciated astronomical phenomena as interesting but did not take them as divine.
