Christopher TuplinChristopher Tuplin is Professor of Ancient History at the University of Liverpool. He is the author of Failings of Empire (1993) and Achaemenid Studies (1996), editor of Pontus and the Outside World (2004) and Xenophon and his World (2004) and co-edior (with T.E.Rihll) of Science and Mathematics in Ancient Greek Culture (2002). He has also published numerous research papers, chiefly on Xenophon, classical Greek history and the Achaemenid Persian Empire. Read More Read Less