Board Thread:Wiki Discussions/@comment-1512913-20140521221412/@comment-28861328-20140521222142

Elveonora wrote: Now lets look at what the canon says:
 * It's been stated multiple times that the Rinnegan came first, since it was split into Sharingan and Senju whatever.
 * The Shinju is the deity of Narutoverse, creation and destruction incarnate, the all in one etc. so it doesn't make sense for Hagoromo to have gotten something which the originator didn't have itself in the first place. With each generation after Kaguya, the descendants have gotten weaker.
 * Since the Rinnegan came first, the Shinju and Kaguya can't have the Sharingan without also having the Rinnegan


 * 1) That was never stated. Ever. Ever. Ever... ever. Never.
 * 2) The Shinju is screwy. It was said that it was "considered a deity", but all the "deity" stuff the Shinju did (when Kurama described it) was attributed to its Ten Tails form, which came during Kaguya and the Sage's time. So... there's that.
 * 3) Again. Never said that. Chapter and page? Never happened.

That's why there is confusion.