History
The north-west has been a crossroads of empires since antiquity. The Mannaeans and then the Medes ruled the lands around Lake Urmia in antiquity, and under the Sasanians the region, known as Atropatene, held Adur Gushnasp, one of the three great fire temples of Zoroastrianism, at the site now called Takht-e Soleyman. Christianity took root early among Armenians and Assyrians, whose churches still dot the north and the Urmia plain.
From the 11th century Turkic peoples settled the region, and over time its language became Azerbaijani Turkish. Tabriz rose to become a capital of the Mongol Ilkhanids, whose ruler Öljeitü built a new capital at Soltaniyeh, and then of the Turkmen Qara Qoyunlu and Aq Qoyunlu. In Ardabil the Sufi order of Sheikh Safi al-Din grew into a militant movement, and in 1501 its young leader Ismail took Tabriz and proclaimed the Safavid dynasty. The Ottomans repeatedly seized the city, and the Safavids moved their capital inland.
Under the Qajars Tabriz was the seat of the crown prince and Iran's gateway to Russia and Europe. After wars with Russia, the Treaty of Turkmenchay in 1828 fixed the border on the Aras river. Tabriz was a centre of the constitutional revolution of 1905–11. After the Second World War, Soviet-backed governments briefly ruled from Tabriz and, among the Kurds, from Mahabad in 1945–46 before Iranian forces returned. Since then Tabriz has grown into a large industrial city, while Kurdistan's relations with the state have remained tense.
