Civilization is defined as complex societies with advanced culture and social stratification. Studying the history of civilization provides important context for understanding the present and predicting the future. It progresses from establishing facts about what happened, to exploring why events occurred and how civilizations evolved over time. This introduction outlined key aspects of civilization like culture, technology, cities, and religion; discussed studying history for prediction, education, and inspiration; and presented how the field has advanced from chronicling facts to seeking causal explanations through improved sources and methods.