The document discusses three early American tribes - the Aztecs, Mound Builders, and Cliff Dwellers. It describes some artifacts left behind by the Aztecs and Mound Builders, such as hieroglyphics, statues, masks and jewelry. It also details where Cliff Dwellers lived - on cliff edges, and how they transitioned from nomadic to sedentary lives through farming corn, squash, beans and cotton. The document concludes by stating the author's preference to be part of the Mound Builders tribe due to their handcrafted houses, cooking materials and use of pits as ovens.