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Occasions: December 2026
- December 1
Jumada II 21 Martyrdom of Ayatollah Modarres; Parliament Day - December 2
Jumada II 22 Death of Abu Bakr - December 7
Jumada II 27 University Students’ Day - December 10
Rajab 1 Birth of Imam Muhammad al-Baqir - December 11
Rajab 2 Birth of Imam al-Hadi (2 Rajab narration) - December 12
Rajab 3 Martyrdom of Imam Ali al-Hadi - December 16
Rajab 7 Research Day - December 18
Rajab 9 Birth of Ali al-Asghar - December 18
Rajab 9 Seminary–University Unity Day (martyrdom of Ayatollah Mofatteh) - December 19
Rajab 10 Birth of Imam Muhammad al-Jawad - December 21
Rajab 12 Imam Ali enters Kufa - December 21
Rajab 12 Yalda Night - December 22
Rajab 13 Birth of Imam Ali - December 24
Rajab 15 Martyrdom of Imam al-Sadiq (15 Rajab narration) - December 24
Rajab 15 Demise of Lady Zaynab - December 24
Rajab 15 Death of Mu‘awiya ibn Abi Sufyan - December 24
Rajab 15 Change of the qibla from Jerusalem to the Kaaba - December 25
Rajab 16 Birth of Jesus (Christian tradition) - December 27
Rajab 18 Death of Ibrahim, son of the Prophet - December 27
Rajab 18 Death of al-Ma’mun - December 28
Rajab 19 Death of al-Mu‘tamid - December 30
Rajab 21 Day of Insight (9 Dey)