Knowledge search
一次检索人物、事件、地点、文本、群体、路线和比较专题，并深入匹配百科正文、时间节点与学界争议。
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艾布·伯克尔、欧麦尔、奥斯曼、阿里时期。H 轨：继承危机、征服与内战（菲特奈）；T 轨：逊尼「正统哈里发」与什叶对阿里优先的分流圣史。Abu Bakr, Umar, Uthman, Ali. H-track: succession crises, conquests, civil war (fitna); T-track: Sunni rightly guided caliphs vs Shi'i priority of Ali.
622 年自麦加迁至叶斯里卜/麦地那；伊斯兰纪元起点。H 轨：政治避难与共同体重建；T 轨：奉命迁徙与信仰考验。622 move from Mecca to Yathrib/Medina; epoch of the Islamic calendar. H-track: political refuge and community rebuilding; T-track: commanded emigration and trial of faith.
7 世纪对拜占庭叙利亚—埃及与萨珊伊拉克—伊朗等地的快速扩张。H 轨：军事、税收与宗教政策复杂；T 轨：为主道开疆与宿命叙事。7th-c. rapid expansion into Byzantine Syria–Egypt and Sasanian Iraq–Iran. H-track: complex military, tax, and religious policy; T-track: expansion in God's path and destiny narratives.
奥斯曼被杀后阿里时期的内战，至661 前后。教派记忆的分水岭。Civil war after Uthman's killing through Ali's caliphate to c. 661; watershed of sectarian memory.