three cities. Language The language used by the majority of the people in this city is Azerbaijani Turkish, but around the city of Miandoab, towards the city of Mahabad, the people of several villages speak Sorani Kurdish. Religion Most of the residents of Miandoab are Shia, and a significant minority of Sunni and a small minority of Yarsani live in the area. Agriculture The favorable geographical location led to high agricultural growth and as a result, the industrial development of Miandoab region. Miandoab sugar factory was built in the early twentieth century with the cooperation of Belgian engineers. The construction of the Nowruzlu diversion dam in the 1971 drew more development and industrialization. Ancient relics There are traces of Medes as well as Urartians in the village of Dash Tappeh. Other ancient relics of this city are as follows: Fortress of Husseinabad Hosseinabad mud and clay fort is located 15 km from Miandoab. Since this fort was the summer fortress of the Hulagu Khan, it is also known as Hulagu khan's Fortress. Parts of the fortress wall and the indoor space and the foundations of one of the watchtowers now are visible. Mirza Rasool or Tatao bridge On the Simineh river, a Qajar bridge named Mirza Rasool can be seen. This bridge, with 80 meters length and 6.4 meters wide, has five spans with gabled arches, which can be seen on the road from Miandoab to Mahabad. This historical bridge was registered on July 20, 1998, with the registration number 2068 as one of the national monuments of Iran and hosts a significant number of tourists, especially during Nowruz. The foundations of this bridge are made of cut stone made of travertine and below it, a piers is used to prevent shocks and water intensity, and the arches of the bridge are in the form of two folds and arches. Some believe that this bridge was built during the Qajar period with seven spans and 200 years old, but it was later found that this bridge dates back to the Safavid period and 'Mirza Rasool' only repaired this bridge during the Qajar period. Kouseh-lar bridge The second historical bridge in Miandoab is a bridge called Kouseh-lar," located in a village of the same name. This historical monument, which is registered as one of the national monuments of Iran with the registration number 6402, was built on the road from Miandoab