High Quality Content by WIKIPEDIA articles! The All Russian Constituent Assembly (Всероссийское Учредительное Собрание, Vserossiiskoe Uchreditelnoe Sobranie) was a constitutional body convened in Russia after the October Revolution of 1917. It is generally reckoned as the first democratically elected legislative body of any kind in Russian history. It met for 13 hours, from 4 p.m. to 5 a.m., 18–19 January 1918, whereupon it was dissolved by the Bolshevik-Left SR coalition government.