This document defines key terms related to culture and human development, including culture, evolution, farming, domestication, development, and period. It then provides information about the Old Stone Age, Mesolithic Age, Neolithic Age, and Metal Age. The major contributions of early humans discussed are tool making during the Old Stone Age, adaptation to new food sources during the Mesolithic Age, the development of agriculture and permanent settlements during the Neolithic Age, and experimenting with copper and discovering bronze and iron during the Metal Age.