Christopher Cullen – författare

This book is a history of the development of mathematical astronomy in China, from the late third century BCE, to the early 3rd century CE - a period often referred to as 'early imperial China'. It narrates the changes in ways of understanding the movements of the heavens and the heavenly bodies that took place during those four and a half centuries, and tells the stories of the institutions and individuals involved in those changes. It gives clear explanations of technical practice in observation, instrumentation, and calculation, and the steady accumulation of data over many years - but it centres on the activity of the individual human beings who observed the heavens, recorded what they saw, and made calculations to analyse and eventually make predictions about the motions of the celestial bodies. It is these individuals, their observations, their calculations, and the words they left to us that provide the narrative thread that runs through this work. Throughout the book, the author gives clear translations of original material that allow the reader direct access to what the people in this book said about themselves and what they tried to do.

The Foundations of Celestial Reckoning gives the reader direct access to the foundational documents of the tradition of calculation created by astronomers of the early Chinese empire between the late second century BCE and the third century CE. The paradigm they established was to shape East Asian thought and practice in the field of mathematical astronomy for centuries to come. It was in many ways radically different from better known traditions of astronomy in other parts of the ancient world. This book includes full English translations of the first three systems of mathematical astronomy adopted for use by imperial astronomical officials, together with introductory material explaining the origin and nature of each system, and a general introduction to the work as a whole. The translations, which are accompanied by the original Chinese text, give a consistent rendering of all technical terms, and include detailed explanatory notes. The text in which the second of the three systems is found also includes a unique collection of documents compiled around 178 CE by two experts in the field, one of whom was the author of the third system translated in this book. Using material transcribed from government archives of the two preceding centuries, these scholars carefully document and review controversies and large-scale official debates on astronomical matters up to their own time. Nothing equivalent in detail and clarity has survived from any other ancient culture. The availability of the totality of this material in English opens new perspectives to all historians of pre-modern astronomy.

In recent decades various versions of Chinese medicine have begun to be widely practised in Western countries, and the academic study of the subject is now well established. However, there are still few scholarly monographs that describe the history of Chinese medicine and there are none at all on the medieval period. This collection represents the kind of international collaboration of research teams, centres and individuals that is required to begin to study the source materials adequately. The first book in English to discuss this fascinating material in the century since the Dunhuang library was discovered, the text provides a unique and fascinating interpretation of Chinese medical history.

This translation of an ancient Chinese book on astronomy (which is believed to date back to the first century AD) provides the non-specialist with a lucid account of how Chinese astronomers did their work in ancient times. The book also shows how the Chinese imperial government made use of and supported the work of astronomers, and explores the links between astronomy and politics. It will be of equal interest to historians of science and those studying the history of Chinese culture.