This chronology of science is divided into chapters by time period and within each chapter by scientific area, giving a complete overview of the progress of science, and allowing easy cross-reference between the various disciplines. It should be a useful source for the general reader with an interest in science as well as school and college students. Over 2500 events in the history of science are included giving a complete overview of scientific discovery and progress. Special feature essays discuss selected major scientific achievements offering an insight to key developments.