Я думаю, что он получил статус не town, а city тк он уже был town до этого. На английском тауны становятся ситями. Тк там точно был какой-то завод, а при нем сам поселок, который и стал городом.
A city is a relatively large and permanent urban settlement. Although there is no agreement on how a city is distinguished from a town within general English language meanings, many cities have a particular administrative, legal, or historical status based on local law.
A town is a human settlement larger than a village but smaller than a city
Если по полной переводить что-то типа этого получится
I live in Severodonetsk, it is located in the eastern part of Ukraine in the west of the Lugansk region, on the left bank of the Seversky's Donets River. The population in Severodonetsk is 112,401 people. Severodonetsk was founded in 1934 in when Azot was built and in 1951 it became a city. In 1970, its population surpased one hundred thousand. Severodonetsk is a city with a vibrant economy, according to this index, it ranks second in the region after the Alchevsk. The main income of the city comes from the chemical industry and private entrepreneurs, they are the main source of income. In Severodonetsk has developed a network of educational institutions, from primary to tertiary institutions and centers. Each year about 3000 non-resident students study in the city. Among the many historical and cultural monuments in Severodonetsk is the city square. It is used for celebratory events and various parades.