This book provides a brief history of the world, focusing on major civilizations while employing a few strong interpretive themes. It could be used as a world history text for students and the ordinary public who are sometimes intimidated or overwhelmed by the detailed content of available history textbooks, or as a complementary book for world history classes. It could also benefit educated and intellectually inclined people by opening a stimulating topic of discussion. Upper division or graduate courses in historiography or philosophy of history might benefit from it as a review of world history, but also in the study of historiography as well. Ultimately, the book is didactic in nature and its goal is to teach history to students of history. In general, it presents an optimistic, if cautious, and realistic view of history in a coherent and meaningful narrative. It is hoped that through the understanding of history a new global ethic can ideally be envisioned and thereby achieved. The main underlying premise in this book is that successful civilizations—ones providing safety, prosperity, and room for individual growth and creativity—have from ancient times to the present flourished when responding creatively to the major challenges of their time and their environment. Second, many successful civilizations appear to have a life span of about two hundred years or some multiple of that number (e.g., the Greek’s Golden Age, the Romans, the Persians, the Chinese Han Dynasty). This number might be a consequence of the life span of individual human beings, about thirty years, with two hundred years constituting about six generations. These six generations might be divided into two first generations (father and son) of visionaries, two second generations of benefactors, and then two generations of critics. This hypothesis assumes the father-son relationship to be more direct, stronger, and more real than ideal. Third, throughout the dialectical process and cycles of integration and disintegration (or centralization and decentralization), societies tend to move toward expansion of greater human intellectual and political unity.