resisted the Arabs. Today, Amol is a thriving modern metropolis. In the Abbasid Caliphate of the ninth century, Amol was one of the largest cities in Iran. Khalid ibn Barmak built a palace in the city and ruled for years. People from the Qarinvand dynasty arrived a couple of years and fought with the Abbasid Caliphate to win the kingdom. During the Umayyad Caliphate period, during the reign of Muawiyah I, Sa'id ibn al-As undertook the conquest of Tabaristan, and with an army of 4,000 troops rushed there, and the whole war between him and Farrukhan the Great lasted for two whole years, but was postponed. The conflict lasted until Abbasid Caliphate until the attack of the Persian general Wandad Hurmuzd. In Hudud al-'Alam, Amol is regarded as a great city with active commerce and trading ventures. However, resentment with the Tahirids rule increased due to the oppressive activities of their officials. People of the provinces pledged alliance to Hasan ibn Zayd. Zayd became the founder of the Zaydid dynasty of Tabaristan Alavids government in Tabaristan established and it's with Amol centered and 106-year domination of the Abbasids in the territory ended. Yaqub ibn Layth the was geostrategy in Amol. Hasan al-Utrush with a trip to Amol who re-established Zaydid rule over the province Tabaristan in northern Iran in 914, after fourteen years of Samanid rule. After the Alid dynasty, the Ziyarid dynasty ruled Iran and Tabaristan. At this time Amol was developed in such a way that geographers have written articles about the industry and its silk. Hasan ibn Zayd, nicknamed al-Dai al-kabir, appeared in the Tabaristan region in 250 AH, and many dissatisfied people and the captives of the Caliph Tahirid strengthened him. He invited people and published the Shiite religion. After coming to power in Tabaristan, Daei Kabir moved his capital from Sari to Amol, which was Taherian's seat. In 260 A.D., Ya'qub ibn al-Layth al-Saffar marched on Tabaristan and entered Amol after the departure of Hassan ibn Zayd, but his rule did not last long and the Alavids recaptured the city again. The Alawites ruled the city until Ziyarid and Buyid, who were the handmaidens of the Shiites. The people of Amol were very militant and stood up to the Arabs, but social injustice and class divisions led the people to convert to Islam. Qabus was in 1012 overthrown by his own army, and was succeeded