One way or another, I think virtually all of the prophets and early Apostles had their visionary moments of our time--a view that gave them courage in their own less successful eras. Those early brethren knew an amazing amount about us. Prophets such as Moses, Nephi, and the brother of Jared saw the latter days in tremendously detailed vision. Some of what they saw wasn't pleasing, but surely all those earlier generations took heart from knowing that there would finally be one dispensation that would not fail.