History is rarely kind to neat, round numbers. While centuries are often defined by their iconic midpoints, the most profound transformations frequently occur in compressed, chaotic bursts. The window between 700 and 765 CE is one such crucible. In just sixty-five years—less than a single human lifetime—the map of the medieval world was permanently redrawn, new dynasties seized the reins of power, and the foundations of global trade, religion, and governance were forged.
The decisive blow came in . An army of rebels, united under the banner of the Abbasid family, defeated the last Umayyad caliph, Marwan II, at the Battle of the Zab. The Abbasids promised a more equitable, universalist Islam. They delivered a massacre: nearly the entire Umayyad royal family was hunted down and killed. 756: The Lone Prince in Cordoba History, however, has a flair for dramatic irony. One Umayyad prince, Abd al-Rahman, survived the slaughter. He fled across North Africa, evading assassins, and in 755 landed in Spain. By 756, he had defeated the Abbasid governor of Al-Andalus and declared himself emir of Cordoba. 700-765
Yet size bred instability. The Umayyads faced a persistent legitimacy crisis. Many non-Arab Muslims ( mawali ), particularly in Persia, were treated as second-class converts. The pious criticized the caliphs for their perceived worldliness and luxury. In 740, a series of revolts began to fracture the empire’s edges. History is rarely kind to neat, round numbers
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