The large ancient Cultures in mythology are waiting for the one?

the one that is supposed to come down from the heavens,.......... is this not interesting that the cultures from one side of the world to the next all speak of this same personage..............and we must understand that they all speak of a great flood or deluge or great earth quakes during the same time line and they speak of heavenly being comming down and pertaking of the earthly women...................doesn't this paint a picture of truth to the simple and the intellectuals. Are we that narrow minded as a Society to not see that what should be obvious to most!!