Stars they followed through a fractured world

Before Copernicus drew his first diagram, a Persian astronomer in Maragha had already described a model of planetary motion that removed Earth from the center. Before Vesalius dissected his first corpse, Ibn al-Nafis had traced pulmonary circulation. This book is about the people who did this work—not as precursors to European science, but as thinkers solving problems in their own time.