The Almoravid movement developed early in the eleventh century among the Sanhaja of the western Sahara, whose control of trans-Saharan trade routes was under pressure from the Zenata Berbers in the north and the state of Ghana in the south. Yahya ibn Ibrahim al Jaddali, a leader of the Lamtuna tribe of the Sanhaja confederation, decided to raise the level of Islamic knowledge and practice among his people. To accomplish this, on his return from the hajj (Muslim pilgrimage to Mecca) in 1048-49, he brought with him Abd Allah ibn Yasin al Juzuli, a Moroccan scholar. In the early years of the movement, the scholar was concerned only with imposing moral discipline and a strict adherence to Islamic principles among his followers. Abd Allah ibn Yasin also became known as one of the marabouts, or holy persons (from al murabitun, "those who have made a religious retreat." Almoravids is the Spanish transliteration of al murabitun--see Marabouts , this ch.).

The Almoravid movement shifted from promoting religious reform to engaging in military conquest after 1054 and was led by Lamtuna leaders: first Yahya, then his brother Abu Bakr, and then his cousin Yusuf ibn Tashfin. With Marrakech as their capital, the Almoravids had conquered Morocco, the Maghrib as far east as Algiers, and Spain up to the Ebro River by 1106. Under the Almoravids, the Maghrib and Spain acknowledged the spiritual authority of the Abbasid caliphate in Baghdad, reuniting them temporarily with the Islamic community in the Mashriq.

Although it was not an entirely peaceful time, North Africa benefited economically and culturally during the Almoravid period, which lasted until 1147. Muslim Spain (Andalus in Arabic) was a great source of artistic and intellectual inspiration. The most famous writers of Andalus worked in the Almoravid court, and the builders of the Grand Mosque of Tilimsan, completed in 1136, used as a model the Grand Mosque of Córdoba.

Data as of December 1993