Complex sentence: On 25 November 1917 Milyukov was elected in the Russian Constituent Assembly, the first truly free election in Russian history, but moved from Petrograd to the Don Host Oblast.
Split into simpler sentences: On 25 November 1917 Milyukov was elected in the Russian Constituent Assembly, the first truly free election in Russian history. Milyukov moved from Petrograd to the Don Host Oblast.