This document summarizes human prehistory from the Paleolithic era to the Metal Ages. It describes how early humans lived as nomadic hunter-gatherers during the Paleolithic era, making tools from stone, bone, and wood. During the Neolithic era, humans transitioned to a more sedentary agricultural lifestyle, domesticating plants and animals and developing pottery and weaving. Finally, the Metal Ages saw the discovery and increasing use of metals like copper, bronze and iron for tools and weapons, as well as the emergence of specialized jobs like metalworkers and traders.