Genesis 5:11

And all the days of Cainan were nine hundred and ten years, and he died. The Arabic writers (o) also commend him as a good ruler of his people; and at his death he charged them not to desert the holy…

We have here all that the Holy Ghost thought fit to leave upon record concerning five of the patriarchs before the flood, Seth, Enos, Cainan, Mahalaleel, and Jared. There is nothing observable…