When this world came to being, there was no single explanation of its origin. Many Native American tribes and other religious groups throughout the world created their own origin or creation myths for the earth on a whole or just the people of the earth. The basis of these myths was cultural and social beliefs of the many different tribes around the world. The Earth on Turtle's Back, When Grizzlies Walked Upright, and The Navajo Origin Legend are the three creation myths by the Onondaga