of the Early Caliphate: The Reign of Uthman, A. D. 644-656 - A. H. 24-35 (R. Stephen Humphreys) Vol. 16 The Community Divided: The Caliphate of Ali I, A. D. 656-657-A. H. 35-36 (Adrian Brockett) Vol. 17 The First Civil War: From the Battle of Siffin to the Death of Ali, A. D. 656-661-A. H. 36-40 (G. R. Hawting) Vol. 18 Between Civil Wars: The Caliphate of Mu'awiyah 40 A.H., 66 A.D.-60 A.H., 680 A.D. (Michael G. Morony) Vol. 19 The Caliphate of Yazid ibn Mu'awiyah, A. D. 680-683 - A. H. 60-64 (I. K. A. Howard) Vol. 20 The Collapse of Sufyanid Authority and the Coming of the Marwanids: The Caliphates of Mu'awiyah II and Marwan I (G. R. Hawting) Vol. 21 The Victory of the Marwanids, A. D. 685-693-A. H. 66-73 (Michael Fishbein) Vol. 22 The Marwanid Restoration: The Caliphate of 'Abd al-Malik: A.D. 693-701 - A.H. 74-81 (Everett K Rowson) Vol. 23 The Zenith of the Marwanid House: The Last Years of 'Abd al-Malik and the Caliphate of al-Walid A.D. 700-715-A.H. 81-95 (Martin Hinds) Vol. 24 The Empire in Transition: The Caliphates of Sulayman, 'Umar, and Yazid, A. D. 715-724-A. H. 96-105 (Stephan Powers) Vol. 25 The End of Expansion: The Caliphate of Hisham, A.D. 724-738-A.H. 105-120 (Khalid Blankinship) Vol. 26 The Waning of the Umayyad Caliphate: Prelude to Revolution, A.D. 738-744 - A.H. 121-126 (Carole Hillenbrand) Vol. 27 The Abbasid Revolution, A. D. 743-750 - A. H. 126-132 (John Alden Williams) Vol. 28 The Abbasid Authority Affirmed: The Early Years of al-Mansur (Jane Dammen McAuliffe) Vol. 29 Al-Mansur and al-Mahdi, A.D. 763-786-A.H. 146-169 (Hugh N. Kennedy) Vol. 30 The Abbasid Caliphate in Equilibrium: The Caliphates of Musa al-Hadi and Harun al-Rashid, A. D. 785-809 - A. H. 169-192 (C. E. Bosworth) Vol. 31 The War Between Brothers, A. D. 809-813 - A. H. 193-198 (Michael Fishbein) Vol. 32 The Absolutists in Power: The Caliphate of al-Ma'mun, A.D. 813-33 - A.H. 198-213 (C. E. Bosworth) Vol. 33 Storm and Stress Along the Northern Frontiers of the Abbasid Caliphate (C. E. Bosworth) Vol. 34 Incipient Decline: The Caliphates of al-Wathig, al-Mutawakkil and al-Muntasir, A.D. 841-863-A.H. 227-248 (Joel L Kraemer) Vol. 35 The Crisis of the Abbasid Caliphate (George Saliba) Vol. 36 The Revolt of the Zanj, A. D. 869-879 - A. H. 255-265 (David Waines) Vol. 37 The Abbasid Recovery: The War Against the Zanj Ends (Philip M