The Almohad Caliphate or Almohad Empire was a North African Muslim empire ruled by a Berber dynasty from 1130 to 1269 (AH 524–667), which at its height controlled much of the Maghreb and the Iberian Peninsula (al-Andalus). The Spanish name "Almohads" derives from the Arabic al-Muwaḥḥidūn, "those who espouse Oneness", reflecting the dynasty's emphasis on divine unity and its protest against what it regarded as the lax character of prevailing Islam, particularly under the Almoravids.
The Almohad movement originated among the Masmuda Berbers under Ibn Tumart, who supplied its religious and ideological inspiration and was recognized by his followers as the Mahdi around 1121. He subsequently established a base at Tinmel in the Atlas Mountains. After Ibn Tumart's death, his successor Abd al-Mu'min (r. 1130–1163) founded the Almohad caliphate and its ruling Mu'minid dynasty and transformed the movement into a major territorial power. Under Abd al-Mu'min, the Almohads overthrew the Almoravids, captured Marrakesh in 1147, and established control over the western Maghreb. Abd al-Mu'min declared himself caliph. Their rule was extended across the Maghreb by 1159 and subsequently into Muslim Iberia. Muslim Spain had fallen under their control by about 1170–1172, and Seville served for a time as their principal centre in al-Andalus.
The Almohad period was marked by significant developments in philosophy and architecture. Among the major intellectual figures associated with the period were Ibn Ṭufayl, Ibn Rushd, and Ibn ʿArabī. A characteristic architectural form, the "Almohad arch", has been interpreted as a physical expression of the imagery of sūra 94 of the Qurʾān, in which God is described as relieving and expanding the burdened human condition. The former Almohad Great Mosque of Seville, of which the Giralda survives as part of the present cathedral, exemplifies this architectural conception.
The decisive turning point of Almohad power in Iberia came in 1212 (AH 609), when caliph Muhammad al-Nasir was defeated at the Battle of Las Navas de Tolosa by an alliance of forces from Castile, Aragon, and Navarre. The defeat initiated a prolonged decline in Almohad power in al-Andalus; Córdoba fell to Christian forces in 1236 and Seville in 1248. In North Africa, revolts by tribes and districts weakened Almohad authority and facilitated the rise of the Marinids from 1215. The last Almohad ruler, Idris al-Wathiq, was ultimately reduced to Marrakesh, where he was killed in 1269. The Marinids then seized the city, bringing Almohad rule in the western Maghreb to an end.
History
Origins
The Almohad movement originated with Ibn Tumart, a member of the Masmuda, an Amazigh tribal confederation of the Atlas Mountains of southern Morocco. At the time, present-day Morocco, Mauritania, western Algeria and parts of Spain and Portugal (al-Andalus) were under the rule of the Almoravids, a Sanhaja Berber dynasty. Early in his life, Ibn Tumart went to Spain to pursue his studies, and thereafter to Baghdad to deepen them. In Baghdad, Ibn Tumart attached himself to the theological school of al-Ash'ari, and came under the influence of the teacher al-Ghazali. He soon developed his own system, combining the doctrines of various masters. Ibn Tumart's main principle was a strict unitarianism (tawhid), which denied the independent existence of the attributes of God as being incompatible with His unity, and therefore a polytheistic idea. Ibn Tumart represented a revolt against what he perceived as anthropomorphism in Muslim orthodoxy. His followers would become known as the al-Muwaḥḥidūn ("Almohads"), meaning those who affirm the unity of God.
After his return to the Maghreb c. 1117, Ibn Tumart spent some time in various Ifriqiyan cities, preaching and agitating, heading riotous attacks on wine-shops and on other manifestations of laxity. He laid the blame for the latitude on the ruling dynasty of the Almoravids, whom he accused of obscurantism and impiety. He also opposed their sponsorship of the Maliki school of jurisprudence, which drew upon consensus (ijma) and other sources beyond the Qur'an and Sunnah in their reasoning, an anathema to the stricter Zahirism favored by Ibn Tumart. His antics and fiery preaching led fed-up authorities to move him along from town to town. After being expelled from Bejaia, Ibn Tumart set up camp in Mellala, in the outskirts of the city, where he received his first disciples – notably, al-Bashir (who would become his chief strategist) and Abd al-Mu'min (a Zenata Berber of the Kumiya tribe who would later become his successor).
In 1120, Ibn Tumart and his small band of followers proceeded to Morocco, stopping first in Fez, where he briefly engaged the Maliki scholars of the city in debate. He even went so far as to assault the sister of the Almoravid emir Ali ibn Yusuf, in the streets of Fez, because she was going about unveiled, after the manner of Berber women. After being expelled from Fez, he went to Marrakesh, where he successfully tracked down the Almoravid emir Ali ibn Yusuf at a local mosque, and challenged the emir, and the leading scholars of the area, to a doctrinal debate. After the debate, the scholars concluded that Ibn Tumart's views were blasphemous and the man dangerous, and urged him to be put to death or imprisoned. But the emir decided merely to expel him from the city.
Ibn Tumart took refuge among his own people, the Hargha, in his home village of Igiliz (exact location uncertain), in the Sous valley. He retreated to a nearby cave, and lived out an ascetic lifestyle, coming out only to preach his program of puritan reform, attracting greater and greater crowds. At length, towards the end of Ramadan in late 1121, after a particularly moving sermon, reviewing his failure to persuade the Almoravids to reform by argument, Ibn Tumart 'revealed' himself as the true Mahdi, a divinely guided judge and lawgiver, and was recognized as such by his audience. This was effectively a declaration of war on the Almoravid state.
On the advice of one of his followers, Umar al-Hintati, a prominent chieftain of the Hintata, Ibn Tumart abandoned his cave in 1122 and went up into the High Atlas, to organize the Almohad movement among the highland Masmuda tribes. Besides his own tribe, the Hargha, Ibn Tumart secured the adherence of the Ganfisa, the Gadmiwa, the Hintata, the Haskura, and the Hazraja to the Almohad cause. Sometime around 1124, Ibn Tumart established his base at Tinmel, a highly defensible position in the valley of the Nfis in the High Atlas. Tinmal would serve both as the spiritual center and military headquarters of the Almohad movement. It became their dar al-hijra (roughly 'place of retreat'), emulating the story of the hijra (journey) of Muhammad's to Medina in the 7th century.
For the first eight years, the Almohad rebellion was limited to a guerilla war along the peaks and ravines of the High Atlas. Their principal damage was in rendering insecure (or altogether impassable) the roads and mountain passes south of Marrakesh – threatening the route to all-important Sijilmassa, the gateway of the trans-Saharan trade. Unable to send enough manpower through the narrow passes to dislodge the Almohad rebels from their easily defended mountain strong points, the Almoravid authorities reconciled themselves to setting up strongholds to confine them there (most famously the fortress of Tasghîmût that protected the approach to Aghmat, which was conquered by the Almohads in 1132), while exploring alternative routes through more easterly passes.
Ibn Tumart organized the Almohads as a commune, with a minutely detailed structure. At the core was the Ahl ad-dār ("House of the Mahdi"), composed of Ibn Tumart's family. This was supplemented by two councils: an inner Council of Ten, the Mahdi's privy council, composed of his earliest and closest companions; and the consultative Council of Fifty, composed of the leading sheikhs of the Masmuda tribes. The early preachers and missionaries (ṭalaba and huffāẓ) also had their representatives. Militarily, there was a strict hierarchy of units. The Hargha tribe coming first (although not strictly ethnic; it included many "honorary" or "adopted" tribesmen from other ethnicities, e.g. Abd al-Mu'min himself). This was followed by the men of Tinmel, then the other Masmuda tribes in order, and rounded off by the black fighters, the ʻabīd. Each unit had a strict internal hierarchy, headed by a mohtasib, and divided into two factions: one for the early adherents, another for the late adherents, each headed by a mizwar (or amzwaru); then came the sakkakin (treasurers), effectively the money-minters, tax-collectors, and bursars, then came the regular army (jund), then the religious corps – the muezzins, the hafidh and the hizb – followed by the archers, the conscripts, and the slaves. Ibn Tumart's closest companion and chief strategist, al-Bashir, took upon himself the role of "political commissar", enforcing doctrinal discipline among the Masmuda tribesmen, often with a heavy hand.
In early 1130, the Almohads finally descended from the mountains for their first sizeable attack in the lowlands. It was a disaster for their opponents. The Almohads swept aside an Almoravid column that had come out to meet them before Aghmat, and then chased their remnant all the way to Marrakesh. They laid siege to Marrakesh for forty days until, in April (or May) 1130, the Almoravids sallied from the city and crushed the Almohads in the bloody Battle of al-Buhayra (named after a large garden east of the city). The Almohads were thoroughly routed, with huge losses. Half their leadership was killed in action, and the survivors only just managed to scramble back to the mountains.
Caliphate and expansion
Ibn Tumart died shortly after, in August 1130. That the Almohad movement did not immediately collapse after such a devastating defeat and the death of their charismatic Mahdi, is likely due to the skills of his successor, Abd al-Mu'min. Ibn Tumart's death was kept a secret for three years, a period which Almohad chroniclers described as a ghayba or "occultation". This period likely gave Abd al-Mu'min time to secure his position as successor to the political leadership of the movement. Although a Zenata Berber from Tagra (Algeria), and thus an alien among the Masmuda of southern Morocco, Abd al-Mu'min nonetheless saw off his principal rivals and hammered wavering tribes back to the fold. Three years after Ibn Tumart's death he was officially proclaimed "Caliph".
After 1133, Abd al-Mu'min quickly expanded Almohad control across the Maghreb, while the embattled Almoravids retained their capital in Marrakesh. Various other tribes rallied to the Almohads or to the Almoravids as the war between them continued. Initially, Almohad operations were limited to the Atlas mountains. In 1139, they expanded to the Rif mountains in the north. One of their early bases beyond the mountains was Taza, where Abd al-Mu"min founded a citadel (ribat) and a Great Mosque circa 1142.
The Almoravid ruler, Ali ibn Yusuf, died in 1143 and was succeeded by his son, Tashfin ibn Ali. The tide turned more definitively in favour of the Almohads from 1144 onwards, when the Zenata tribes in what is now western Algeria joined the Almohad camp, along with some of the previously Almoravid-aligned leaders of the Masufa tribe. This allowed them to defeat Tashfin decisively and capture Tlemcen in 1144. Tashfin fled to Oran, which the Almohads then attacked and captured, and he died in March 1145 while trying to escape. The Almohads pursued the defeated Almoravid army west to Fez, which they captured in 1146 after a nine-month siege. They finally captured Marrakesh in 1147, after an eleven-month siege. The last Almoravid ruler, Ishaq ibn Ali, was killed.
In 1151, Abd al-Mu'min launched an expedition to the east. This may have been encouraged by the Norman conquests along the coast of Ifriqiya, as fighting the Christian invaders here gave him a pretext for conquering the rest of the region. In August 1152, he captured Béjaïa, the capital of the Hammadids. The last Hammadid ruler, Yahya ibn Abd al-Aziz, fled by sea. The Arab tribes of the region, the Banu Hilal and Banu Sulaym, reacted to the Almohad advance by gathering an army against them. The Almohads routed them in the Battle of Sétif in April 1153. Abd al-Mu'min nonetheless saw value in their military abilities. He persuaded them by various means – including taking some families as hostages to Marrakesh and more generous actions like offering them material and land incentives – to move to present-day Morocco and join the Almohad armies. These moves also had the corollary effect of advancing the Arabisation of future Morocco. They were specifically settled into the Atlantic plains of Morocco which was previously depopulated by the Almohads. Without the Almohad recruitment of Arabs and resettling into the Atlantic plains, Morocco would have avoided the rural Arabisation that came with the Hilalian migrations into the Maghreb. The settlement added to the ethnic complexity of the Maghreb and the Arabs became the most powerful force in the Moroccan plains when the Almohad army declined. The Berbers who previously inhabited these plains were either Arabized or displaced to nearby mountains. There was also a significant amount of Arab and Berber intermarriage which led to the spread of Arabic language and restructuring of tribal structures. These plains are inhabited today by the descendants of these Arab tribes known as the ʕroubiya – a name that literally means "Bedouins".
Abd al-Mu'min spent the mid-1150s organizing the Almohad state and arranging for power to be passed on through his family line. In 1154, he declared his son Muhammad as his heir. In order to neutralise the power of the Masmuda, he relied on his tribe of origin, the Kumiyas (from the central Maghreb), whom he integrated into the Almohad power structure and from whom he recruited some 40,000 into the army. They would later form the bodyguard of the caliph and his successors. In addition, Abd al-Mu'min relied on Arabs, the great Hilalian families that he had deported to Morocco, to further weaken the influence of the Masmuda sheikhs. These Arabs became embedded in the Almohad elite to the point that they became partners in giving the bay‘a to a new caliph and formed the most important contingents in the Almohad military in Ifriqiya, al-Andalus and the provinces.