Photo of the Day: Pyramids in Giza at Sunset

Juan Cole is the founder and chief editor of Informed Comment. He is Richard P. Mitchell Distinguished University Professor in the History Department at the University of Michigan He is author of, among many other books, Muhammad: Prophet of Peace amid the Clash of Empires and The Rubaiyat of Omar Khayyam. Follow him on Twitter at @jricole or the Informed Comment Facebook Page