Khorasan

Khorasan is a region in between Persia and Central Asia. It includes the second largest city in Persia Mashhad and was once a much larger area called Greater Khorasan.

History
In 647 the Rashidun Caliphate conquered the region of Khorasan. In 821 Tahir ibn Husayn founded Tahirid Dynasty by gaining the governorship of Khorasan and declaring independence the next year. In 1506 the Safavid Dynasty conquered the region and established their rule there. In 1722 part of Khorasan was conquered by the Hotak Dynasty in Afghanistan while in 1724 the local governor Mahmud Sistani declared independence and founded the Kiyanid Dynasty. The rebellion was crushed in 1726 and the land reclaimed from the Hotaks in 1729. In 1751 Afsharid control was relegated to Khorasan. In April 1803 the Qajar finally reconquered Khorasan after years of independence. From 1846 to 1851 the governor of Khorasan Hasan Khan Salar (Appointed in 1845) launched an unsuccessful rebellion against the Qajar controlled Persia. Most recently during the Revolutions of 1917 - 1923 the province temporarily gained independence under military rule.