Michele Renee Salzman is Professor of History at the University of California at Riverside and University of California Presidential Chair. She is the author of two other books, On Roman Time: The Codex-Calendar of 354 and the Rhythms of Urban Life in Late Antiquity (University of California Press, 1990), The Making of a Christian Aristocracy: Social and Religious Change in the Western Roman Empire (Harvard University Press, 2002), and numerous articles; and is the General Editor for the Cambridge History of Ancient Mediterranean Religions.

Michael Roberts is Robert Rich Professor of Latin at Wesleyan University. He is the author of numerous books and articles on late Latin poetry, most recently The Humblest Sparrow: The Poetry of Venantius Fortunatus (University of Michigan Press, 2009). His The Jeweled Style: Poetry and Poetics in Late Antiquity (Cornell University Press, 1989) has recently been reissued in paperback. He is a member of the editorial board for the SBL Writings from the Greco-Roman World series.