Indians of the United States There was a time long ago when there was no man in America, only animals. This was thousands of years before Columbus ever set eyes on America. What he saw was different; he saw a land populated from the north to the south. Due to the natural instinct of man to explore, the explorers just that to figure out the mysterious Indians. The explorers later theorized that the Indians came from Siberia through a land bridge in the Bering Strait during the time when the water levels were not high. They also realized that it was difficult to predict the times when things happened to the Indians since they d