1. The document discusses early human life from prehistory to the rise of civilizations. It describes key findings that helped scientists understand early humans, such as discoveries by Louis and Mary Leakey and Donald Johanson. 2. During the Paleolithic Age, nomadic humans lived in small hunter-gatherer groups and developed simple stone tools. The Neolithic Revolution led to the rise of agriculture and more permanent settlements. 3. The first civilizations emerged with organized governments, religion, job specializations and other complex social structures, such as Catal Huyuk in ancient Turkey.