Islam is the official religion of Iran. Islam was introduced through the Arab conquest of Iran in the 7th century, which led to the fall of the Sasanian Empire and the gradual conversion of the Irania
Imam Reza shrine, the holiest religious site in Iran, Mashhad
Photo taken from medieval manuscript by Qotbeddin Shirazi (1236–1311), a Persian Astronomer. The image depicts an epicyclic planetary model.
Ayatollah Ali Khamenei leading Friday prayers in Tehran, 17 January 2020
The Fatima Masumeh Shrine in Qom, burial site of the daughter of the seventh Shia Imam
Shia Islam is the second-largest branch of Islam. It is rooted in the belief that the Islamic prophet Muhammad explicitly designated his cousin and son-in-law Ali ibn Abi Talib as his rightful politic
The investiture of ʿAlī ibn Abī Ṭālib at Ghadir Khumm (MS Arab 161, fol. 162r, 1308–1309, Ilkhanid manuscript illustration)
Great Mosque of Kufa, site of ʿAlī's assassination (661)
Shāh ʿAbd al-ʿAẓīm Shrine in Rey, Iran, contains the tomb of ʿAbd al-ʿAẓīm al-Ḥasanī, a descendant of Ḥasan ibn 'Alī and a companion of Muhammad al-Taqī.
Battle of Karbala, painting by the Isfahan-based Persian artist Abbas Al-Mousavi, Brooklyn Museum (between 1868 and 1933)