After two centuries under the Arabs was a period of indigenous Muslim dynasties, but then Iran was conquered by the Turks and Mongols. Tormund I’ve Always Had Blue Eyes Game Of Thrones shirt. The Safavids emerged in the 15th century, then reestablished a united Iranian state and national identity.  Iran later converted to Shia Islam, marking a turning point for the nation as well as Islamic history.   By the eighteenth century, under Nader Shah, Iran for a short time was once considered the most powerful empire of the time.  Conflict with the Russian Empire in the nineteenth century caused Iran to lose many territories.   Revolution of the Constitution in 1906 established a constitutional monarchy. After a coup in 1953, Iran gradually became closely connected with the West and increasingly autocratic. Dissatisfied with foreign influence and political repression leading to the Islamic Revolution in 1979, the establishment of the Islamic republic regime.  In the 1980s, Iran was at war with Iraq, the war caused high casualties and major financial losses for the two countries. Since the 2000s, Iran’s controversial nuclear program has raised international concern, leading to many international sanctions.