As a 'Medieval Warm Period' prevailed in Western Europe during the tenth and eleventh centuries, the eastern Mediterranean region, from the Nile to the Oxus, was suffering from a series of climatic disasters which led to the decline of some of the most important civilizations and cultural centres of the time. This provocative study argues that many well-documented but apparently disparate events - such as recurrent drought and famine in Egypt, mass migrations in the steppes of central Asia...

In the thirty-five years since B.Z. Kedar published the first of his many studies on the crusades, he has become a leading historian of this field, and of medieval and Middle Eastern history more broadly. His work has been groundbreaking, uncovering new evidence and developing new research tools and methods of analysis with which to study the life of Latins and non-Latins in both the medieval West and the Frankish East. From the Israeli perspective, Kedar's work forms a important part of t...