al-Mahdi becomes Imam. Zanji state established at al-Muktara during the Zanj Rebellion in South Iraq. Death of the Samanid ruler Ahmad, accession of Nasr I. 875: Death of Abbasid official, Abdallah ibn Muhammad ibn Yazdad al-Marwazi. Death of Muhammad ibn Ahmad Abbasid vassal Emir of Ifriqiya. 876: April 8 – Battle of Dayr al-'Aqul: Abbasid forces, led by Al-Muwaffaq, halt a Saffarid rebellion on the River Tigris. The rebel Ya'qub ibn al-Layth tries to capture the Abbasid Caliphate's capital of Baghdad, but he is forced, with his army, to retreat. 877: Death of Ya'qub ibn al-Layth al-Saffar in Sistan, accession of Amr bin Layth. 878: Fall of Syracuse to the Muslims. 879: Zanj Rebellion: The Abbasid Caliphate concentrates its efforts against the Zanj rebels in Mesopotamia. The Abbasid general Abu'l-Abbas Ahmad (future caliph Al-Mu'tadid) leads an expeditionary force (10,000 men) to suppress the revolt. This marks the turning-point of the war. 883: End of Zanj Rebellion 884: Abdullah ibn Umar al'Habbari (884-913) succeeded his father as ruler of Sindh. His father Umar ended up creating a hereditary dynasty in Sindh because of Anarchy at Samarra and Fifth Fitna 885: Death of Ahmad ibn Tulun in Egypt, accession of Khumarawayh ibn Ahmad ibn Tulun. 886: Death of Muhammad I the Umayyad ruler of Spain, accession of al-Mundhir. Death of Abdullah ibn Umar the Habbari ruler of Sind. 888: Death of Mundhir the Umayyad ruler of Spain, accession of Abdullah ibn Muhammad al-Umawi. 891: The Qarmatian state established at Bahrain. 892: Abbasid Caliph al-Mu'tamid death. al-Mu'tadid becomes Caliph. Death of the Samanid ruler Nasr, accession of Ismail I. 893: Zaydi Imamate is established in Yemen by al-Hadi Yahya ibn al-Husayn ibn al-Qasim 894: The Rustamids become the vassals of Spain. 896: Death of Khumarawayh ibn Ahmad ibn Tulun; accession of Abu 'l-Asakir Jaysh. 897: Assassination of Abu 'l-Asakir Jaysh; accession of Abu Musa Harun. 898: Qarmatians sack Basra. By the end of this century, global Muslim population had grown to 3 percent of the total. 899: Birth of Muhammad ibn Ahmad al-Mu'tadid the future Abbasid caliph Al-Qahir, he ruled from 932 to 934. See also Timeline of Muslim history References 09