This document provides information about five ancient river valley civilizations: Mesopotamia, Egypt, Indus Valley, China, and the Fertile Crescent. It discusses the geography, politics, economics, and social aspects of each civilization. Key points include: Mesopotamia arose between the Tigris and Euphrates Rivers; Egypt's civilization was centered around the Nile River; the Indus Valley civilization spanned modern-day Pakistan and India; China began along the Yellow River; and the Fertile Crescent stretched through modern Iraq, Israel, and Syria. Each civilization relied on farming and trade. Writing systems included cuneiform, hieroglyphics, and early Chinese characters.