August 31
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August 31 is the 243rd day of the year (244th in leap years) in the Gregorian calendar; 122 days remain until the end of the year.
- 629 CE - Battle of Mu'ta, between the army of Islam and Roman army. (Jumada I 5, 8)
- 789 CE – Birth of Abd al-Azim al-Hasani, scholar and transmitter of hadith, (Rabi' II 4, 173 AH)
- 1960 CE - Birth of al-Sayyid Hasan Nasrullah (Rabi' I 8, 1380))
- 1974 CE - Demise of al-Husayn al-Hilli (Sha'ban 12, 1394))
- 1979 CE - Demise of Sayyid Mahmud Taliqani (Shawwal 7, 1399)
- 1978 CE - Disappearance of al-Sayyid Musa al-Sadr in Libya (Ramadan 27, 1398)
- 2001 CE - Demise of Isma'il Salihi Mazandarani, a member of the Assembly of Experts of the Leadership (Jumada II 11, 1422)