jan 1, 811 - Battle of Rayy 811 CE
Description:
Fought between the forces of al-Amin and al-Ma'mun during the Fourth Fitna. Al-Ma'mun’s forces, led by Tahir ibn Husayn, defeated al-Amin’s army.
Al-Amin’s forces: ~10,000 killed.
Al-Ma'mun’s forces: ~5,000 killed.
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