How did the Sunni Shiite split in medieval times bring about modern tensions between Iran and Iraq? "Middle Ages Reference Library" helps students answer this question and many other enigmas by encouraging them to see how events and ideas are linked. Included in this set are: "Middle Ages: Almanac," covering the different civilizations and peoples of Medieval times; "Middle Ages: Biographies," a 2-vol. compilation of biographical essays on significant individuals of the era; and "Middle Ages: Primary Sources," presenting an insightful collection of excerpts from relevant letters, journal entries, poems and more from the era.