Assertion: caliphate's army | /r/HasProperty | sent by the umayyad caliph
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text: Battle of Karbala, (October 10, 680 [10th of Muḥarram, ah 61]), brief military engagement in which a small party led by al-Ḥusayn ibn ʿAlī, grandson of the Prophet Muhammad and son of ʿAlī, the fourth caliph, was defeated and massacred by an army sent by the Umayyad caliph Yazīd I.