The Teton Sioux Chief Crazy Horse received this vision toward the end of his life:
§ "He saw his people being driven into spiritual darkness and poverty while the white people prospered in a material way all around them. But even in the darkest times, he saw that the eyes of a few of his people kept the light of dawn and the wisdom of the earth, which they passed on to some of their grandchildren. He saw the coming of automobiles and airplanes, and twice he saw the great darkness and heard the screams and explosions when millions of people died in two great world wars.
§ "But he saw, after the second great war passed, a time come when his people began to awaken, not all at once, but a few here and there, and then more and more, and he saw that they were dancing in a beautiful light of the Spirit World under the Sacred Tree even while still on Earth. Then he was amazed to see that dancing under the tree were representatives of all races who had become brothers, and he realized that the world would be made new again and in peace and harmony not just by his people, but by members of all races of mankind." (12)1
1. Taken from Prophecy –A History of the Future (Internet Edition), by Robert A. Nelson at http://www.rexresearch.com/prophist/phf8usa.htm