Thomas R. Martin (Ph.D., Harvard University) is Jeremiah O'Connor Professor in Classics at the College of the Holy Cross. He is the author of Sovereignty and Coinage in Classical Greece (1985) and Ancient Greece (2000), and he is a co-author of The Making of the West: Peoples and Cultures (2009). He is also one of the originators of Perseus: Interactive Sources and Studies on Ancient Greece (www.perseus.tufts.edu).