巴格达陷落（1258）Fall of Baghdad (1258)

到13世纪，阿拔斯哈里发早已不再统治整个伊斯兰世界，实际控制主要限于伊拉克部分地区；塞尔柱等苏丹长期掌握军事权。不过巴格达哈里发仍有宗教—外交象征，城市保有学校、市场和跨地区学者网络。与此同时，火灾、洪水、灌溉衰退及逊尼—什叶街区冲突削弱了城市。把1258年前的巴格达描写成毫无变化的“黄金时代首都”会夸大突然性，但政治衰弱不意味着城市没有活力或毁灭不严重。By the thirteenth century, Abbasid caliphs no longer ruled the whole Islamic world and directly controlled mainly parts of Iraq; sultans such as the Seljuks had long held military power. Yet the Baghdad caliph retained religious-diplomatic symbolism, and the city sustained madrasas, markets, and transregional scholarly networks. Fire, flood, irrigation decline, and Sunni-Shia neighborhood conflict had also weakened it. Portraying pre-1258 Baghdad as an unchanged golden-age capital exaggerates suddenness, but political weakness neither erased urban vitality nor made the destruction insignificant.

蒙哥大汗命弟弟旭烈兀巩固伊朗并解决尼扎里伊斯玛仪堡垒和不服从的地区政权。旭烈兀1256年攻下阿拉穆特后，要求哈里发穆斯台绥木亲自归顺、拆除城防并提供军队；双方使节往返却没有达成可执行妥协。哈里发高估外部穆斯林援军或自身象征威慑，蒙古则以帝国服从逻辑看待拒绝。后世有人把失败完全归罪于什叶宰相伊本·阿勒卡米“叛卖”，但这种叙事充满宗派指控，缺乏证明一人秘密造成整场征服的可靠证据。Great Khan Möngke charged his brother Hulagu with consolidating Iran and subduing the Nizari Ismaili fortresses and disobedient regional powers. After taking Alamut in 1256, Hulagu demanded that caliph al-Musta'sim submit personally, dismantle defenses, and supply troops. Exchanges of envoys produced no enforceable compromise. The caliph overestimated external Muslim aid or the deterrence of his symbolic status, while Mongols interpreted refusal through an imperial logic of submission. Later accounts blame the Shia vizier Ibn al-Alqami for secretly betraying Baghdad, but these are saturated with sectarian accusation and do not prove that one man caused the conquest.

1257年末，蒙古各路军队从多方向逼近，兵力包括蒙古、突厥及附属的格鲁吉亚、亚美尼亚等部队，并使用成熟的攻城工程。1258年1月底巴格达被合围，哈里发军一次出击失败；蒙古控制堤坝和交通，炮击城墙。哈里发于2月初出城投降，蒙古军约2月13日进入城市，随后发生持续多日的杀戮、掠夺和建筑破坏。哈里发及其多数男性家属被处死，巴格达阿拔斯王朝的连续统治终结。In late 1257, Mongol armies converged from several directions, including Mongol, Turkic, and subject Georgian and Armenian contingents and sophisticated siege engineering. Baghdad was encircled in late January 1258; a caliphal sortie failed as Mongols controlled dikes and communications and bombarded the walls. The caliph surrendered in early February, and Mongol troops entered around 13 February. Days of killing, looting, and structural destruction followed. The caliph and most male relatives were executed, ending continuous Abbasid rule in Baghdad.

中世纪作者给出的死亡人数从数十万到更高不等，远超可由人口资料确认的范围；可靠结论只能是伤亡巨大，无法提供精确总数。基督教团体或与蒙古盟友有关者有时获保护，但不能据此说所有基督徒都安然无恙。图书馆、清真寺、宫殿和水利设施受损是真实的，“河水因书墨变黑、因鲜血变红”则主要是强烈的文学意象，缺少同时代量化证据。历史写作应同时拒绝淡化灾难和把哀悼修辞当作统计报告。Medieval authors offer death tolls from hundreds of thousands upward, beyond what demographic evidence can verify. The sound conclusion is immense loss without a precise total. Some Christian institutions or persons linked to Mongol allies received protection, but this does not mean all Christians were safe. Libraries, mosques, palaces, and irrigation works were genuinely damaged. Claims that the river ran black with ink and red with blood function primarily as powerful literary images, not contemporary quantitative evidence. History must reject both minimizing catastrophe and treating lament rhetoric as statistics.

蒙古没有把巴格达永久遗弃。旭烈兀任命行政官治理伊拉克，史家朱韦尼等参与恢复税收和城市秩序；但人口损失、水利破坏和伊儿汗政治重心位于伊朗—阿塞拜疆，使巴格达长期无法恢复原有中心地位。1260年马穆鲁克在艾因贾鲁特阻止蒙古进一步控制叙利亚，1261年又在开罗扶立阿拔斯宗室作为象征性哈里发。宗教法学和政治效忠继续运作，却不再需要一位在巴格达拥有普遍军政权的哈里发。The Mongols did not permanently abandon Baghdad. Hulagu appointed administrators over Iraq, and figures such as the historian Juwayni helped restore revenue and urban order. Nevertheless, population loss, irrigation damage, and the Ilkhanid focus on Iran and Azerbaijan prevented Baghdad from regaining its former centrality. The Mamluks blocked further Mongol control of Syria at Ayn Jalut in 1260 and installed an Abbasid relative as symbolic caliph in Cairo in 1261. Law, piety, and political allegiance continued without requiring a universally powerful caliph in Baghdad.

蒙古统治者合赞1295年改宗伊斯兰，此后伊儿汗宫廷赞助波斯史学、天文、建筑和宗教机构；纳西尔丁·图西的马拉盖天文台即在征服后环境中建立。不能以此抵消巴格达居民的灾难，却说明征服者与被征服文明的关系会在一代内改变。伊斯兰世界的开罗、大马士革、安纳托利亚、印度和伊朗继续生产知识；所谓“1258年终结黄金时代”把几个世纪的区域变迁压缩成单日因果，也忽略战前已发生的政治分散和战后创造。Ilkhan Ghazan converted to Islam in 1295, and Ilkhanid courts subsequently sponsored Persian historiography, astronomy, architecture, and religious institutions; Nasir al-Din Tusi's Maragha observatory emerged in the post-conquest setting. This cannot offset Baghdad's human disaster, but it shows conqueror-conquered relations changing within a generation. Cairo, Damascus, Anatolia, India, and Iran continued intellectual production. The claim that a golden age ended with Baghdad in 1258 compresses centuries of regional change into a single cause and ignores both preexisting political dispersal and post-conquest creation.