The Formative Period is one of three major historical periods in American Indian prehistory. As the Archaic Period came to an end, hunter-gatherers began farming crops. They formed permanent settlements and built large structures such as mounds and villages. Meanwhile, new cultures developed. The Formative Period explores how people lived during the period and how archaeologists continue to study Formative artifacts. Easy-to-read text, vivid images, and helpful back matter give readers a clear look at this subject. Features include a table of contents, infographics, a glossary, additional resources, and an index. Aligned to Common Core Standards and correlated to state standards. Core Library is an imprint of Abdo Publishing, a division of ABDO.