Gouvernement Tobolsk
For the most parts of its history, the Novosibirsk Oblast belonged to the Tomsk administration, initially as a part of the Tomsk uyezd of the Tobolsk Governorate and later, starting with 1804, the separate Tomsk Governorate. The turning point in history of the region was the construction of the Trans-Siberian and the Turkestan–Siberian railways. Founded in 1893, Novosibirsk, then Novonikolayevsk, became a transport hub of sub-regional importance and surpassed other major Siberian cities like Omsk and Tomsk in mere decades. In 1920, the capital of the Tomsk Governorate was moved to Novonikolayevsk, in 1921 the Novonikolayevsk Governorate was established. In 1925, most of the Siberian governorates were united as the Siberian Krai with Novosibirsk as the capital. In 1930, it was split into West Siberian (Novosibirsk) and East Siberian (Irkutsk) krais, the former existed until 1937. The Novosibirsk Oblast was finally established on September 28, 1937. Kemerovo and Tomsk became separate from it only in 1943–1944.