This document provides brief summaries of important concepts and events in early Chinese history, including: - Loess soil deposited by the Huang He river which was good for agriculture. Yu the Great improved flood control and agriculture. - Oracle bones used for divination by writing questions and interpreting cracks formed when heated. - Confucius founded Confucianism by writing the Analects, emphasizing relationships and respect. Laozi founded Daoism by writing the Dao de Jing about withdrawing from the world. - Qin Shi Huangdi unified China under the Qin Dynasty and built the Great Wall and Terracotta Army. He followed the philosophy of Legalism emphasizing strict laws.