Important events during and around al-Idrisi's life (1100-1160)
c.1020: The Canon of Medicine, by Avicenna.
1031: Collapse of the Umayyad Caliphate of Córdoba, leading to era of Taifas.
1054: Great Schism between Western and Eastern Orthodox churches.
1054: Supernova observed by astronomers, the remnants of which would form the Crab Nebula.
1061: Norman conquest of Sicily begins.
1070: Almoravids (Murabits) had established a capital at Marrakesh.
1071: Seljuqs neutralize Byzantine threat at the Battle of Manzikert.
1085: Alfonso VI of Castile captures the Muslim city of Toledo, Spain.
1086: Almoravid Yusuf ibn Tashfin invited by taifa princes of Iberian Peninsula to fight Alfonso VI.
1086: Battle of Zallaqa.
1086: Judah Halevi born.

1087: Arzachel dies in Toledo.
1091: Conquest of Sicily competed by Roger I.
1092: Peter the Venerable born; Seljuq emir Malik Shah dies.
1094: Schism between Musta’lian and Nizari Ismailis.
1095: Pope Urban II preaches the First Crusade at the Council of Clermont.
1097-98: Crusaders resort to Cannibalism at Ma'arat al-Numan.
1099: Fall of Jerusalem.
1100: Henry I becomes King of England.
1100: Abu Muhammad Jabir ibn Aflah born.
1105: Ibn Tufail born.
1110: Nizami-i Aruzi-i Samarqandi born.
1111: Al-Ghazali dies.
1118: Abbasid Caliph Al-Mustadhir dies, succeeded by Ar-Rashid.
1118: John II Komnenos becomes Byzantine basileus.
1122: Al-Hariri of Basra dies.
1123: Omar Khayyam dies.
1124: Hasan-i Sabbah dies.
1126: Ibn Rushd (Averroes) born.
1130: Papal schism, Pope Innocent II vs. Antipope Anacletus II (ends 1138).
1134: Leo Styppeiotes becomes patriarch of Constantinople.
1135: Moses Maimonides born.
1135: Stephen of Blois becomes King of England.
1136: Al-Muqtafi becomes Abbasid Caliph, following the brief reign of Ar-Rashid.
1137: Louis VII becomes King of France.
1138: Conrad III becomes HRE.
1138: Ibn Bajjah dies in Fes.
1141: Matilda is briefly English monarch.
1143: First translation of Qur'an into Latin commissioned by Peter the Venerable (Robert of Ketton).
1143: Manuel I Komnenos becomes Byzantine basileus.
1144: Edessa falls to the Zengi; first example of anti-Semitic blood libel recorded in England.
1146: Bernard of Clairvaux preaches the Second Crusade (1147-1149).
1146: Cosmas II Atticus becomes patriarch of Constantinople.
1147: Nicholas IV Muzalon becomes patriarch of Constantinople.
1147: Almohads, led by Abd al-Mu'min, takes North Africa from the Almoravids,
then invade Iberian Peninsula
.
1148: The Alexiad written by the Byzantine historian Anna Komnene.
1152: Raymond of Toledo dies.
1154: Al-Idrisi publishes his Geography; Henry II becomes King of England.
1157: Henry II of England defeated by Owain Gwynedd.
1165: Ibn Arabi born.
1179: Yaqut al-Hamawi born.
1187: Saladin captures Jerusalem.
1258: Sack of Baghdad.