Dhu l-Hijja 20
- 66 AH - Departure of Ibrahim b. Malik al-Ashtar to fight with 'Ubayd Allah b. Ziyad (July 18, 686)
- 1329 AH - Demise of al-Akhund al-Khurasani (December 12, 1911)
- 1360 AH - Birth of Sayyid Sadiq Shirazi (January 8, 1942)
- 1396 AH - Demise of Muhammad Taqi Adib Nisaburi (December 12, 1976)
- 1413 AH - Completion of Minhaj al-salihin by al-Sayyid 'Ali al-Sistani (June 11, 1993)
- 1419 AH - Demise of Sayyid 'Abd al-Karim Radawi Kishmiri (April 7, 1999)