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Ibn Tumart

(Encyclopedia)Ibn Tumart ĭˈbən to͞omärtˈ [key], c.1080–1130, Berber Muslim religious leader, founder of the Almohads. He went to the East in his youth and returned convinced that he was the Mahdi and that h...

Ibn Khaldun

(Encyclopedia)Ibn Khaldun ĭˈbən khäldo͞onˈ [key], 1332–1406, Arab historian, b. Tunis. He held various offices under the rulers of Tunis and Morocco and served (1363) as ambassador of the Moorish king of Gr...

Ibn Bajja

(Encyclopedia)Ibn Bajja: see Avempace.

Ibn Rushd

(Encyclopedia)Ibn Rushd: see Averroës.

Ibn Sina

(Encyclopedia)Ibn Sina: see Avicenna.

Ibn al-Haytham

(Encyclopedia)Ibn al-Haytham ălhəzĕnˈ [key], 965–c.1040, Arab mathematician. Ibn al-Haytham was born in Basra, but made his career in Cairo, where he supported himself copying scientific manuscripts. Among hi...

Ibn Hanbal, Ahmad

(Encyclopedia)Ibn Hanbal, Ahmad äˈməd ĭbˈən hănˈbăl [key], 780–855, Muslim jurist and theologian. His disciples founded the fourth of the four major Sunni schools of jurisprudence, the Hanbali. Ibn Hanba...

Tarik ibn Ziyad

(Encyclopedia)Tarik ibn Ziyad täˈrĭk [key], fl. 711, Berber leader of the Muslim invaders of Spain. When the heirs of the Visigothic king, Witiza, requested help from the Moors of N Africa against the usurper Ro...

Ibn Sina Peak

(Encyclopedia)Ibn Sina Peak: see Lenin Peak.

Yusuf ibn Tashfin

(Encyclopedia)Yusuf ibn Tashfin yo͞oso͝ofˈ ĭˈbən täshfēnˈ [key], d. 1106, ruler in the dynasty of the Almoravids (c.1059–1106). A Muslim, he led the Berbers in N Africa, continued the conquest of Morocco...