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Islamic republic - Wikipedia
Iran - Persian Empire, Middle East, Shiite Islam | Britannica
Iranian Revolution | Summary, Causes, Effects, & Facts
History of the Islamic Republic of Iran - Wikipedia
Iran - Wikipedia
Iran | People, Religion, Leader, President, Map, & Nuclear Deal
Iran country profile - BBC News
Iran - The World Factbook
Who Rules Iran: The Structure of Power in the Islamic Republic
The Iran Revolution at 40: From Theocracy to ‘Normality’