William DunhamWilliam Dunham served as Koehler Professor of Mathematics at Muhlenberg College (emeritus, 2014) and taught mathematics history as a visiting professor at Harvard University, Princeton University, the University of Pennsylvania, and Cornell Universit. In 2009, he was a visiting scholar at the University of Cambridge, and the following year he recorded the DVD course 'Great Thinkers, Great Theorems' for The Teaching Company. He is the author of four books: Journey through Genius (1990), The Mathematical Universe (1995), Euler: The Master of Us All (1999), and The Calculus Gallery (2005). Dunham is currently a Research Associate in Mathematics at Bryn Mawr College, Pennsylvania. Read More Read Less