sentences:  He was awarded a personal chair in Medieval History in 2002.His 1999 book "The Delhi Sultanate" was described by a reviewer as amongst the most distinguished works on the medieval Islamic world in our time  and was slated for translation into Arabic.In this book, the geographical extent of his scholarship, his linguistic skills, and his immense knowledge of medieval Islamic geography enabled him to compress into a single volume a nuanced
  assessment which is rooted in close textual analysis and a mastery of the linguistic problems
  presented by his sources, a rare mastery today and reminiscent of the research of Simon Digby.