It is stated in the historical writings: Asak was the name of a city from the village or mountain of Khorasan, where Parth is called, and its founder was Ashk Aol.

In his inscription, Darius the Great connects Part Roza with Zarnka and Herat, and Sargarti, which was located in the Lut desert, with Gorgan.

Nilsson writes twice that Andragoras, who was ruling Parthia before Antiochus II, was killed in this raisin, and apparently Arsasis was crowned king in a city called Asak, which was located near Quchan in the Etrak valley.

There is the name of Atashgah, which confirms the presence of many ashes, and a basic and comprehensive investigation should be done because it is possible that it is the same place as the famous Atashkada, which time has destroyed its traces.

M was elected king"[1] Since 1316, when the first law of national division was approved, Quchan was recognized as one of the seven provinces of Greater Khorasan along with the cities of Bojnourd, Birjand, Sabzevar, Gonabad, Mashhad and Torbat-e Heydarieh.

[2] Quchan is in the north-east of Iran in Razavi Khorasan Province at an elevation of 1,149 meters above sea level north of the Shah Jahan Mountains.

In a part of the industrial town, number two has been presented to the parliament after passing its legal process and is about to be established.