I. Bernard Cohen (1914—2003) was Victor S. Thomas Professor, Emeritus, of the History of Science at Harvard University, where he taught from 1942 to 1984. He was the first American to receive the degree of Ph.D. in the History of Science. He was the author of many books, including Science and the Founding Fathers: Science in the Political Thought of Thomas Jefferson, Benjamin Franklin, John Adams, and James Madison; The Science of Benjamin Franklin; Revolution in Science; The Newtonian Revolution; The Birth of a New Physics; and, with Anne Whitman, Isaac Newtonís Principia: A New Translation of Newtonís Mathematical Principles of Natural Philosophy. He edited several series of works, including Harvard Monographs in the History of Science, Three Centuries of Science in America, and the ongoing Studies & Texts in the History of Computing. He was a Fellow of the American Academy of Arts and Sciences, the American Association for the Advancement of Science, the Royal Astronomical Society, the British Academy, and the Accademia Nazionale dei Lincei.