The All Russian Constituent Assembly (Всероссийское Учредительное собрание, Vserossiyskoye Uchreditelnoye sobraniye) was a constitutional body convened in Russia after the October Revolution of 1917. It is generally recognized 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 [O.S.