Russian Empire Bolsheviks followed in 1918. The administrative boundaries of European Russia, apart from Finland and its portion of Poland, coincided approximately with the natural limits of the East-European plains. In the North it met the Arctic Ocean. Novaya Zemlya and the Kolguyev and Vaygach Islands also belonged to it, but the Kara Sea was referred to Siberia. To the East it had the Asiatic territories of the Empire, Siberia and the Kyrgyz steppes, from both of which it was separated by the Ural Mountains, the Ural River and the Caspian Sea — the administrative boundary, however, partly extending into Asia on
Severnaya Zemlya During the days that followed Vilkitsky's expedition charted parts of the Laptev Sea coast of what they believed to be a single island. Barely six months later in early 1914, by order of the Secretary of the Imperial Navy, the new discovery was renamed "Emperor Nicholas II Land" (, "Zemlya Imperatora Nikolaya II"), after ruling Emperor Nicholas II of Russia. In 1926 the Presidium of the Central Executive Committee of the USSR renamed the still not fully explored land "Severnaya Zemlya". In May 1928, an attempt was made by Umberto Nobile and his crew in the Airship Italia to overfly