Bilasuvar District () is one of the 66 districts of Azerbaijan. It is located in the south-east of the country and belongs to the Shirvan-Salyan Economic Region. The district borders the districts of Imishli, Saatly, Sabirabad, Salyan, Neftchala, Jalilabad, and Ardabil Province of Iran. Its capital and largest city is Bilasuvar. As of 2020, the district had a population of 105,100. Etymology The district's name is derived from the city Bilasuvar. "Bile" is derived from the Turkish word “bilya” which means lowland, while "suvar" means a "cavalryman". According to Azerbaijani sources, 10 thousand cavalrymen were deployed in these lowlands during the reign of Sassanid shah Khosrov. Geography Total area of the district equals 1358 km2. It occupies the south-western and southern part of the Mugan plain. The total length of the borders is equal to 241 km. An international customs post is in the Bilasuvar District territory. The climate of Bilasuvar is rather hot, with dry summers. Temperature varies from 2 °C (in winter) to 26 °C(in summer) with average rainfall 260mm. The main types of soil in Bilasuvar are chestnut soils, grey meadow, steppe saline soils. Most of the area of the district is below the sea level, 542 hectares of which are forests. Forests have many animals, including deers, bears, boars, goats, wolves, etc. History The Persian historian Hamdullah Qazvini wrote that the medieval urban settlement of Bilasuvar was established by the emir of Buveyhi, Pilasuvar in the 10th century, and was hence named after him. In the 14th century, the city declined due to feudal civil strife. The name in Turkic means pure water falls, due to the area's numerous rivers, though given the largely flat terrain the reference to waterfalls is somewhat misleading. In 1930, Bilasuvar District was created with the centre in Pushkin Settlement. In 1938, the district was renamed Pushkin District. In 1963, the territory was united with Jalilabad District, and in 1964, it became an independent district again. After the collapse of the USSR in 1991, it returned to its historic name and was renamed Bilasuvar District. Important historical findings include ruins of Shahriyar-tepe which belong to the Middle Ages, the Shakhriyar fortress which was built in the Iron Age, Kosha-tepe mound which also belongs to the Iron Age. In the city of Bilasuvar ruins of Icheri Aghdam village and the Shahriyar, fortress were found. They also belong to the Middle Ages. Economy