Board Thread:Naruto Discussions/@comment-36221354-20180717114536/@comment-1512913-20180719080021

Elveonora is almost always right and when he is not right, he is just half wrong. Anyways, in all likelihood, Kaguya might not have been the first one ever with a Rinne Sharingan. We don't know if Momoshiki, Kinshiki and Urashiki were alive when Kaguya arrived on Earth, but they didn't seem to speak about her as some historical figure that they had only heard about, but as someone they personally met. So just possibly, they were also 1000+ years old. Now, just as Kaguya and her sons started chakra on Earth, it seems safe to assume that there also had to be this first individual who was the first one with chakra on the Otsutsuki homeworld, wherever that may be.