The first volume in a projected four volume series The Ancestry of Science, this is an excellent survey introduction to the development of astronomy and dynamics, emphasizing the contribution of these sciences to early cosmological thinking. Concentrating on the background of early science, the authors range from the beginnings of celestial forecasting in Sumeria to the influences of Newton's thought on a science. They give descriptions of a number of significant areas in the history of science that are not often presented in clear detail for the layman or student. They illuminate the real accomplishments of the Babylonians, the limitations of Aristotle's the flexibility of the theory of the creation of mechanics, the character of Newton's achievement. The gigantic advances made in the early history of science are pin-pointed here in a way that cannot help but stimulate further in their details. For every library building its astronomy or general science sections.