Novosibirsk[a] is the largest city and administrative centre of Novosibirsk Oblast and the Siberian Federal District in Russia. As of the 2021 census, it had a population of 1,633,595,[21] making it the most populous city in Siberia and the third-most populous city in Russia after Moscow and Saint Petersburg. It is also the most populous city in the Asian part of Russia. Novosibirsk is located in southwestern Siberia, on the banks of the Ob River.[22] Novosibirsk was founded in 1893 on the Ob River crossing point of the future Trans-Siberian Railway, where the Novosibirsk Rail Bridge was constructed. Originally named Novonikolayevsk[b] ("New Nicholas") in honor of Emperor Nicholas II, the city rapidly grew into a major transport, commercial, and industrial hub. Novosibirsk was ravaged by the Russian Civil War but recovered during the early Soviet period and gained its present name, Novosibirsk ("New Siberia"), in 1926. Under the leadership of Joseph Stalin, Novosibirsk became one of the largest industrial centers of Siberia. Following the outbreak of World War II, the city hosted many factories relocated from the Russian core.