Almohad doctrine
Almohad doctrine or Almohadism was the ideology underpinning the Almohad movement, founded by Ibn Tumart, which created the Almohad Empire during the 12th to 13th centuries. The reformist ideology and policies of the Almohads involved a series of attempted radical changes to Islamic religious and social doctrine under their rule. These policies affected large parts of the Maghreb and altered the existing religious climate in al-Andalus (Islamic Spain and Portugal) for many decades. They marked a major departure from the social policies and attitudes of earlier Muslim governments in the region, including the preceding Almoravid dynasty which  had followed its own reformist agenda. The religious fundamentalism of the Almohad Caliphate lead to emigration of Jews and Christians from southern Iberia to the Christian north and North Africa, specifically Egypt. Origins. Religious climate before Almohads. During its golden age, Spain was open to a good deal of religious tolerance. For the most part the Almoravids let other People of the Book, or other religions that held the Old Testament as a holy text, practice their religion freely. The Almoravids, however, were more puritanical than previous Muslim rulers of Spain. The golden age for Jews in Spain is considered  to be under the relative tolerant rule of the Ummayyad Caliphate in al-Andalus. It was generally a time when Jews were free to conduct business, participate in government, and practice their religion without fear of persecution. Rise to power. The Almohads were led by ibn Tumart, regarded by historians as a fundamentalist who was convinced that it was his destiny to reform Islam. Ibn Tumart claimed to be the "mahdi", a title which elevated him to something similar to a messiah or leader of a redemption of righteous Islamic order. He was an intelligent and charismatic man; he claimed  to be a direct descendant of Muhammad. He had studied in Alexandria, Córdoba, Mecca, and Baghdad, and his charismatic preaching earned him a devoted group of followers. He presented a different religious view that caused outright hostility on the Iberian Peninsula after the Almohads crossed the Strait of Gibraltar in 1146. Their rule quickly spread across the Muslim territories of the peninsula (known as Al-Andalus). At their height they were one of the most powerful forces in the western Mediterranean. They were a determined military and economic force, defeating Christian forces primarily composed of Castilians at the Battle of  Alarcos. Ibn Tumart himself died in 1130, well before the Almohads' main military successes, and had no spiritual successor. However, the political leadership of his movement passed on to Abd al-Mu'min, who effectively founded the ruling Almohad dynasty. He and his successors had very different personalities from Ibn Tumart but nonetheless pursued his reforms, culminating in a particularly aggressive push by Ya'qub al-Mansur (who arguably ruled at the apogee of Almohad power in the late 13th century). Religious doctrine and ideology. The Almohad ideology preached by Ibn Tumart is described by Amira Bennison as a "sophisticated hybrid form  of Islam that wove together strands from Hadith science, Zahiri and Shafi'i "fiqh", Ghazalian social actions ("hisba"), and spiritual engagement with Shi'i notions of the imam and "mahdi"". This contrasted with the highly orthodox or traditionalist Maliki school ("maddhab") of Sunni Islam which predominated in the region up to that point. Central to his philosophy, Ibn Tumart preached a fundamentalist or radical version of "tawhid" – referring to a strict monotheism or to the "oneness of God". This notion gave the movement its name: "al"-"Muwaḥḥidūn" (), meaning roughly "those who advocate "tawhid"", which was adapted to "Almohads" in European writings. Ibn Tumart  saw his movement as a revolutionary reform movement much as early Islam saw itself relative to the Christianity and Judaism which preceded it, with himself as its "mahdi" and leader. Whereas the Almoravids before him saw themselves as emirs nominally acknowledging the Abbasids as caliphs, the Almohads established their own rival caliphate, rejecting Abbasid moral authority as well as the local Maliki establishment. The Almohad judicial system has been described as looking to the letter of the law rather than the deeper intended purpose of the law. They primarily followed the Zahirite school of law within Sunni Islam; under the  reign of Abu Yaqub Yusuf, chief judge Ibn Maḍāʾ oversaw the banning of any religious material written by non-Zahirites. Abu Yaqub's son Abu Yusuf went even further, actually burning non-Zahirite religious works instead of merely banning them. They trained new judges, who were given schooling in both the religious and military arts. In terms of Islamic theology, the Almohads were Ash'arites, their Zahirite-Ash'arism giving rise to a complicated blend of literalist jurisprudence and esoteric dogmatics. Some authors occasionally describe Almohads as heavily influenced by Mu'tazilism. Scholar Madeline Fletcher argues that while one of Ibn Tumart's  original teachings, the "murshida"s (a collection of sayings memorized by his followers), holds positions on the attributes of God which might be construed as moderately Mu'tazilite (and which were criticized as such by Ibn Taimiyya), identifying him with Mu'tazilites would be an exaggeration. She points out that another of his main texts, the "'aqida" (which was likely edited by others after him), demonstrates a much clearer Ash'arite position on a number of issues. Nonetheless, the Almohads, particularly from the reign of Caliph Abu Yusuf Ya'qub al-Mansur onward, embraced the use of logical reasoning as a method of validating the  more central Almohad concept of "tawhid". This effectively provided a religious justification for philosophy and for a rationalist intellectualism in Almohad religious thought. Al-Mansur's father, Abu Ya'qub Yusuf, had also shown some favour towards philosophy and kept the philosopher Ibn Tufayl as his confidant. Ibn Tufayl in turn introduced Ibn Rushd (Averroes) to the Almohad court, to whom Al-Mansur gave patronage and protection. Although Ibn Rushd (who was also an Islamic judge) saw rationalism and philosophy as complimentary to religion and revelation, his views failed to convince the traditional Maliki "ulema", with whom the Almohads were already  at odds. After the decline of Almohadism, Maliki Sunnism ultimately became the dominant official religious doctrine of the region. By contrast, the teachings of Ibn Rushd and other philosophers like him were far more influential for Jewish philosophers – including Maimonides, his contemporary – and Christian Latin scholars – like Thomas Aquinas – who later promoted his commentaries on Aristotle. Treatment of non-Muslims. At their peak in the 1170s, the Almohads had firm control over most of Islamic Spain, and were not threatened by the Christian forces to the north. Once the Almohads took control of southern Spain and Portugal, they introduced a  number of very strict religious laws. Even before they took complete control in the 1170s, they had begun removing non Muslims from positions of power. Jews and Christians were denied freedom of religion, with many sources relating that the Almohads rejected the very concept of "dhimmi" (the official protected but subordinate status of Jews and Christians under Islamic rule) and insisted that all people should accept Ibn Tumart as "mahdi". During his siege against the Normans in Mahdia, Abd al-Mu'min infamously declared that Christians and Jews must choose between conversion or death. Likewise, the Almohads officially regarded all non -Almohads, including non-Almohad Muslims, as false monotheists and in multiple cases massacred or punished the entire population of a town, both Muslim and non-Muslim, for defying them. Generally, however, the enforcement of this ideological position varied greatly from place to place and appears to have been especially tied to whether or not local communities resisted the Almohad armies as they advanced. However, as the Almohads were on a self-declared "jihad", they were willing to use brutal techniques to back up their holy war. In some cases the threats of violence were carried out locally as a warning  to others even if the authorities did not have the ability to actually follow through on a larger scale. Native Christians in al-Andalus who were living under Muslim rule up until this point had the option to escape to Christian-controlled lands to the north, and many did so. Alfonso VII of Leon and Castile also encouraged them to flee by offering them lands if they migrated to his territory. Jews, however, were particularly vulnerable as they faced an uncertain minority status in both Christian or Muslim territory, as well as because they lived mainly in urban areas where  they were especially visible to authorities. Many were killed in the course of Almohad invasions or repressions. This pressure to convert resulted in many conversions under duress which were insincere, with many Christians and Jews officially converting in order to escape violence while preserving their livelihoods. Even the famous Jewish philosopher Maimonides was reported to have officially converted to Islam under Almohad rule when he moved from Cordoba to Fes, before finally leaving for Egypt where he was able to live openly as a Jew again. Half-hearted oaths were certainly not looked to as ideal and brought a lot  of problems for the population of al-Andalus, much as it did during the forced conversion of Muslims and Jews in Spain and Portugal a few centuries later. The Almohads recognized that many of the conversions by Jews were not particularly sincere, which certainly did not help to promote social and religious unity. They responded to this by imposing severe regulations on the business of former Jews. Abu Yusuf Yaqub al-Mansur set up a strict dress code for Jews living within Almohad territory: Jews had to wear dark blue or black, the traditional colors of mourning in Islam, which  further entrenched discrimination. Decline. In al-Andalus the Almohad caliphate was decisively defeated by the combined Christian forces of Portugal, Castile, and Aragon at the Battle of Las Navas de Tolosa, in 1212. The battle is recognized as one of the most important events in the reconquista movement in Spain. Not only was it a decisive defeat of the Muslim forces, it was also one of the first times the fractured Christian kingdoms of the north came together for the common goal of reclaiming the peninsula. Following 1212 the Almohad Caliphate's power declined and the revolutionary religious dogmatism of  Ibn Tumart began to fade as later Almohad dynastic rulers were more preoccupied with the practicalities of maintaining the empire over a wide region whose population largely did not subscribe to Almohadism. This culminated in 1229 when Caliph al-Ma'mun publicly repudiated Ibn Tumart's status as "mahdi." This declaration may have been an attempt to appease the Muslim population of al-Andalus, but it also allowed for one Almohad faction, the Hafsids, to disavow his leadership and declare the eastern part of the empire in Ifriqiya (Tunisia) to be independent, thus founding the Hafsid state. By 1270, the Almohads  were no longer a force of any significance on the Iberian Peninsula or Morocco. After their fall, the fundamentalist religious doctrine that they supported was relaxed once again. Some scholars consider that Ibn Tumart's overall ideological mission ultimately failed, but that, like the Almoravids, his movement nonetheless played a role in the history of Islamization in the region. One holdover for Jews was a law that stated that people who converted to Islam would be put to death if they reconverted. The Hafsids of Tunisia, in turn, officially declared themselves the true "Almohads" after their independence from Marrakesh but  this identity and ideology lessened in importance over time. The early Hafsid leadership mainly attempted to keep the Almohads as a political elite more than a religious elite in a region that was otherwise predominantly Maliki Sunni in orientation. Eventually, the Almohads were merely one among multiple factions competing for power in their state. After 1311, when Sultan al-Lihyani took power with Aragonese help, Ibn Tumart's name was dropped from the "khutba" (the main community sermon on Fridays), effectively signaling the end of public support for Almohad doctrine. Over the 14th century the Maliki "ulama" (scholars) increasingly occupied  positions in the state and were the "de facto" religious authorities.