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Abd al Mu'min was a prominent member of the Almohad movement. Although the Almohad movement itself was founded by Ibn Tumart, Abd al-Mu’min was the founder of the ruling dynasty and creator of the Almohad empire. As a leader of the Almohad movement he became the first Caliph of the Almohad Empire in 1133, after the death in 1130 of the movement's founder, Ibn Tumart, and ruled until his death in 1163. Abd al-Mu'min put his predecessor's doctrine of Almohadism into practice, defeated the Almoravids, and extended his rule across Al-Andalus and as far as Tunis in Ifriqiya, thus bringing the Maghreb in North Africa and Al-Andalus in Europe under one creed and one government.