Farah Bala Hisar (Farah)

 place with historical importance, fortification, 1st century construction

The Citadel at Farah is one of a series of fortresses constructed by Alexander the Great, the city being an intermediate stop between Herat, the location of another of Alexander's fortresses, and Kandahar. Under the Parthian Empire, Farah fell under the satrapy of Aria, and was one of its key cities. It is thought to be Phra, mentioned by Isidorus Characenus in the 1st century AD. In the 5th century CE Farah was one of the major strongholds on the eastern frontier of the Sassanid Empire.

The region was historically part of the Persian Khorasan province and was controlled by the Tahirids followed by the Saffarids, Samanids, Ghaznavids, Ghurids, Ilkhanates, Timurids, and Saffavids until the early-18th century when it became part of the Afghan Hotaki dynasty followed by the Durrani Empire.