John Steele is a historian of the exact sciences in antiquity. He specializes in the history of astronomy, with a particular focus on Babylonian astronomy. He is editor of the bookseries Scientific Writings from the Ancient and Medieval World and a member of the editorial boards of several bookseries and journals including Time, Astronomy, and Calendars and the Journal for the History of Astronomy. He holds an honourary Professorship at Shanghai in the School of History and Culture of Science at Shanghai Jiao Tong University, and is a senior fellow of the Institute for the Study of the Ancient World at New York University. Before coming to Brown, he held a Royal Society University Research Fellow at Durham University, was E. P. May Fellow at the Institute for the History and Philosophy of Science and Technology at the University of Toronto, and was Dibner Institure Postdoctoral Fellow at the Dibner Institute for the History of Science and Technology.