Donald Kagan, at the time of his death in 2021, was professor Emeritus of Classics and History at Yale University. He was a preeminent historian of both the ancient and modern worlds. A former dean of Yale College, he received his Ph.D. in 1958 from The Ohio State University. His publications include The Archidamian War, The Peace of Nicias and the Sicilian Expedition, On the Origins of War and the Preservation of Peace, and The Peloponnesian War. In 2002 he was the recipient of the National Humanities Medal and in 2005 was named the National Endowment for the Humanities Jefferson Lecturer.
–Biography from Yale University.