William Rosen, author of The Third Horseman, Justinian’s Flea, and The Most Powerful Idea in the World, was an editor and a publisher at Macmillan, Simon & Schuster, and the Free Press for nearly twenty-five years.
The Emperor Justinian reunified Rome's fractured empire by defeating the Goths and Vandals who had separated Italy, Spain, and North Africa from imperial rule. At his capital in Constantinople, he built the world's most beautiful building, married its mos... SEE MORE