The Almohad dynasty was a significant Islamic movement that emerged in the 12th century in North Africa. Founded by Ibn Tumart, the Almohads sought to reform Islam by emphasizing strict monotheism and rejecting the more lenient practices of the Almoravid dynasty. They expanded their influence across Morocco, Algeria, and into the Iberian Peninsula. Under the leadership of Abu Yaqub Yusuf, the Almohads achieved notable military successes, including the conquest of Seville and Cordoba. Their rule is characterized by a flourishing of culture, architecture, and philosophy, with prominent figures like Maimonides contributing to the intellectual landscape of the time.