Ibn Khallikan's Biographical Dictionary is an authoritative and comprehensive work documenting the lives of prominent figures in Islamic history. This fourth volume covers the letters 'sin' and 'shin'. The book is valuable not only for its historical content but also for its literary style, which has made it a classic of Arabic literature. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.