Religion in Iraq
Islam is the official state religion in the Republic of Iraq, but the constitution guarantees freedom of religion. Iraq is a multi ethnic and multi religious country with Islam, Christianity, Yazdanism, Zoroastrianism, Shabakism, Judaism, Mandaeism, Bahā'i, Ahl-e Haqq-Yarsanis, Ishikism and numerous other religions all having a presence in the country. Shia Islam is the main religion in Iraq followed by 60–65% of the population, while Sunni Islam is followed by 32–37% of the people. Many cities throughout Iraq have been areas of historical prominence for both Shia and Sunni Muslims, including Najaf, Karbala, Baghdad and Samarra.
Shia Islam in Iraq
Shia (; ) Muslims make up the majority of the Iraqi population, with 64 to 69 percent of Iraqis identifying as Shia. Shia Islam has a long history in Iraq; the fourth caliph of Sunni Islam and the first Imam of Shia Islam, Ali ibn Abi Talib, moved the capital of the empire from Medina to Kufa (or Najaf) two decades after the death of Muhammad.