Ghaznavid Sultan Mohammad Ghaznavi is overthrown by Maw'dud Ghaznavi. 1044: Death of the Buwayhid Jalal al-Dawla, accession of Abu Kalijar. 1046: Basasiri captures power in Baghdad. 1047: The Zirids in North Africa repudiate allegiance to the Fatimid and transfer allegiance to the Abbasids. 1048: Death of the Buwayhid Abu Kalijar, accession of Malik al-Rahim. 1050: Yusuf ibn Tashfin comes to power in the Maghrib. 1055: Tuğrul Bey overthrows the Buwayhids. 1057: Basasiri recaptures power in Baghdad, deposes Al-Qa'im and offers allegiance to the Fatimid Caliph. 1059: Tuğrul Bey recaptures power in Baghdad, Al-Qa'im is restored as the Caliph. 1060: Ibrahim of Ghazna becomes the Sultan. Yusuf ibn Tashfin founds the city of Marrakesh. The Zirids abandon their capital Ashir and establish their capital at Bougie. 1062: Death of the Zirid ruler Al Muizz, accession of Tamin. 1063: Death of the Seljuq Sultan Tuğrul Bey accession of Alp Arslan. 1064 Seljuk army under Alp Arslan captured Ani and slaughtered its population. 1071: Battle of Manzikert, the Byzantine emperor Romanos IV is taken captive by the Seljuq Turks. 1073: Death of Alp Arslan, accession of Malik Shah. Badr al-Jamali takes power as the vizier of the Fatimid Caliphate. 1077: Death of the Abbasid Caliph Al-Qa'im, accession of Al-Muqtadi. 1077: Seljuq Turks found Sultanate of Rûm in Turkey. 1082: The Almoravids conquer Algeria. 1085: After a four-year siege, Toledo delivers itself up to Alfonso VI. 1086: Battle of Zallakha. The Almoravids defeat the Christians in Spain. 1086: Death of Suleyman I of Rum, accession of Kilij Arslan I. 1090: Hassan-i Sabbah captures Alamut, making it an Isma'ilite stronghold. 1091: The Normans conquer the island of Sicily; end of the Muslim rule. 1092: Death of the Seljuq Sultan Malik Shah I, accession of Mahmud I of Great Seljuq. 1094: Death of Seljuq Sultan Mahmud I; accession of Barkiyaruq. Death of the Abbasid Caliph Al-Muqtadi, accession of Mustahzir. 1095: The first crusade. 1099: The crusaders capture Jerusalem. By the end of this century, global Muslim population had grown to 5 per cent of the total. See also Timeline of Muslim history References 11