Mark Andreyevich Natanson was a Russian revolutionary who was one of the founders of the Circle of Tchaikovsky, Land and Liberty and the Socialist-Revolutionary Party. In 1917, he was a leader of the
The Party of Left Socialist-Revolutionaries-Internationalists was a revolutionary socialist political party formed during the Russian Revolution.
Russian peasants. The Left SRs presented itself as their main representative and sole defender of the populist program against the passivity of the moderate Socialist Revolutionary Party. The reforms they led during the first months of 1918 gave the government significant support in the countryside.
Spiridonova, surrounded by delegates of the Second Congress of Peasant Soviets, at the end of 1917.
Negotiations with Central Empires in Brest-Litovsk. The Left SRs opposed the conditions imposed by the imperialist powers, rejecting the peace treaty and withdrawing from the coalition government with the Bolsheviks.