Re: "As old as 100 million years"
If one reads the lost biblical Book of Beyonce, (Fits somewhere after the dinosaur part of Genesis), we find how this occurred.
"And on the umpteenth day, God looked again at the heavens and it was still good. But woman pointed out he hadn't done much with the heavens since the 4th day, and also that he hadn't paid enough attention to the heavens in quite a while."
"So the almighty placed a large ring around an object in the night sky to again demonstrate his love for the heavens."
"Woman again pestered God as to why she hadn't received such a ring? God, in his omnipotent wisdom, recognized that this labor was something Man should be tasked with doing."
Thus the biblical parable "If thou liketh, thou best to put a ring on it"