Related Topics:Abbasid (Arabic: العبّاسيّون, Abbāsīyūn) is the dynastic name generally given to the caliph of Baghdad, the second of the two great Sunni dynasties of the Islamic empire, that overthrew the Umayyad caliphs from all but Spain. It seized power in 750, when it finally defeated the Umayyads in battle, and flourished for two centuries, but slowly went into decline with the rise to power of the Turkish army it had created, the Mamluks. Within 150 years of gaining power across Iran they were forced to cede power to local dynasties who only nominally acknowledged their power and cede the Maghreb to independent Aghlabids. Their rule was finally ended in 1258, when Hulagu Khan, the Mongol conqueror, sacked Baghdad. While they continued to claim authority in religious matters from their base in Egypt, the dynasty's secular authority had ended. Descendants of the Abbasids include the al-Abbasi tribe who live northeast of Tikrit in modern-day Iraq.
The Abbasids also distinguished themselves from the Umayyads by attacking their secularism, moral character, and administration in general. The Abbasids also appealed to non-Arab Muslims, known as mawali, who remained outside the kinship-based society of Arab culture and were perceived of as a lower class within the Umayyad empire. Muhammad ibn 'Ali, a great-grandson of Abbas, began to campaign for the return of power to the family of the prophet Muhammad, the Hashimites, in Persia during the reign of Umar II, Muhammad ibn Ali.
During the reign of Marwan II, this opposition culminated in the rebellion of Ibrahim the Imam, the fourth in descent from Abbas. Supported by the province of Khorasan, he achieved considerable successes, but was captured (AD 747) and died in prison (as some hold, assassinated). The quarrel was taken up by his brother Abdallah, known by the name of Abu al-'Abbas as-Saffah, who, after a decisive victory on the Greater Zab River (750), finally crushed the Umayyads and was proclaimed Caliph.
These fissures in their support led to immediate problems. The Umayyads, while out of power, were not destroyed. The only surviving member of the Umayyad royal family, which had been all but annihilated, ultimately made his way to Spain where he established himself as an independent Emir (Abd ar-Rahman I, 756). In 929, Abd ar-Rahman III assumed the title of Caliph, establishing Córdoba as a rival to Baghdad as the legitimate capital of the Islamic Empire.
The Abbasids also found themselves at odds with the Shias, many of whom had supported their war against the Umayyads, since the Abbasids claimed legitimacy by their familial connection to Muhammed. Once in power, the Abbasids embraced Sunni Islam and disavowed any support for Shi'a beliefs. That led to numerous conflicts, culminating in an uprising in Mecca in 786, followed by widespread bloodshed and the flight of many Shi'a to the Maghreb, where the survivors established the Idrisid kingdom. Shortly thereafter Berber Kharijites set up an independent state in North Africa in 801.
At the same time the Abbasids faced challenges closer to home. The Byzantine Empire was fighting Abbasid rule in Syria and Anatolia. Former supporters of the Abbasids had broken away to create a separate kingdom around Khorosan in northern Persia. Harun al-Rashid (786 - 809) turned on the Barmakids, a Persian family that had grown significantly in power within the administration of the state. In the ensuing centuries the Iranian territories would only nominally remain under the Caliphs rule and power would be held by various local political factions who usurped the caliphs authority; the first of whome were the Saffarids and the chief of whom were the Buyids who for time even ruled from Baghdad; or those politically supported factions who only nominally supported the caliphs authority such as the Tahirid and the Samanids. The eventual rise of the Ghaznavid Empire and the Seljuks to displace all these factions marked the end of Abbassid political dominion over the area.
The Mamluk army, though often viewed negatively, both helped and hurt the caliphate. Early on, it provided the government with a stable force to deal with domestic and foreign problems. However, creation of this foreign army and al-Mu'tasim's transfer of the capital from Baghdad to Samarra created a division between the caliphate and the peoples they claimed to rule. In addition, the power of the Mamluks steadily grew until al-Radi (934 - 941) was constrained to hand over most of the royal functions to Mahommed bin Raik. In the following years, the Buwayhids, who were Shi'ites, seized power over Baghdad, ruling central Iraq for more than a century before being overthrown by the Seljuq Turks. In the same period, the Hamdanids, another Shi'ite dynasty, came to power in northern Iraq, leading to a tremendous expansion of Shi'a influence. In the process, the Abbasid caliphs became no more than figureheads.
A number of medieval thinkers and scientists living under Islamic rule played a role in transmitting Greek, Hindu, and other pre-Islamic knowledge to the Christian West. They contributed to making Aristotle known in Christian Europe. In addition, the period saw the recovery of much of the Alexandrian mathematical, geometric and astronomical knowledge, such as that of Euclides and Claudius Ptolemy. These recovered mathematical methods were later enhanced and developed by other Islamic scholars, notably by Al-Biruni, and Abu Nasr Mansur.
Medicine was an area of science that advanced particularly during the Abbasids' reign. During the ninth century Baghdad contained over 800 doctors, and great discoveries in the understanding of anatomy and diseases were made. The clinical distinction between measles and smallpox was discovered during this time. Famous scientist Ibn Sina (known to the West as Avicenna) produced treatises and works that summarized the vast amount of knowledge that scientists had accumulated, and is often known as the father of modern medicine. The work of him and many others directly influenced the research of European scientists during the Renaissance and even later.
Three speculative thinkers, al-Kindi, al-Farabi, and Avicenna, combined Aristotelianism and Neoplatonism with other ideas introduced through Islam.
The Abbasids still maintained a feeble show of authority, confined to religious matters, in Egypt under the Mamluks, but the dynasty finally disappeared with Al-Mutawakkil III, who was carried away as a prisoner to Constantinople by Selim I.
عباسيون | Абасиди | Abbàssida | Abbasiden | Califato Abbasí | عباسیان | Abbassides | Abaside | Abbasiyah | Abbàsidi | בית עבאס | Kerajaan Bani Abbasiyyah | Abbasiden | アッバース朝 | Abbasydzi | Abássidas | Аббасиды | Abbásovci | Абасиди | Abbasidit | Abbasider | Abbasiler | Аббасиди (династія) | 阿拔斯王朝
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