The document provides information about several early indigenous groups that inhabited areas that are now part of the United States and Mexico. It discusses the Cherokee people and their spiritual traditions, physical characteristics, and settlements along riverbanks in the Southeast. It also describes the Cheyenne tribes of the Great Plains, their economy based on hunting bison and gathering wild rice, and their traditional religious beliefs. Finally, it summarizes the Olmec civilization as the first major culture in Mexico, known for their colossal stone heads and jade figurines, located in the tropical lowlands of southern Mexico.