Оренбургская губерния
In 1743 the Chelyabinsk fortress became a center of the , a constituent part of the Orenburg Governorate (a direct successor of the Orenburg Expedition). The period from the 1750s to the 1770s saw the emergence of industrial enterprises in the Southern Urals when the first factory-centered towns like Miass, Kyshtym, and Zlatoust were founded. After the Southern Urals recovered from the Pugachev's Rebellion of 1773–1775, the territory of modern-day Chelyabinsk Oblast started to attract more people from the European part of Russia. By the mid-19th century Chelyabinsk was a major trade center in the Urals, and after the construction of the Trans-Siberian Railway in the 1890s it became an important transport hub that connected Siberia to the rest of the Russian Empire.