The Bolsheviks' and Vladimir Lenin's October Revolution of 7 November 1917 transferred political power in Petrograd to the radical, left-wing socialists. The German government's decision to arrange safe conduct for Lenin and his comrades from exile in Switzerland to Petrograd in April 1917, was a success. An armistice between Germany and the Bolshevik regime came into force on 6 December and peace negotiations began on 22 December 1917 at Brest-Litovsk. November 1917 became another watershed in the 1917-1918 rivalry for the leadership of Finland. After the dissolution of the Finnish Parliament, polarisation between the social democrats and the conservatives increased markedly and the period witnessed the appearance of political violence. An agricultural worker had been shot during a local strike on 9 August 1917 at Ypäjä and a Civil Guard member was killed in a local political crisis at Malmi on 24 September. The October Revolution disrupted the informal truce between the Finnish non-socialists and the Russian Provisional Government. After political wrangling over how to react to the revolt, the majority of the politicians accepted a compromise proposal by Santeri Alkio, the leader of the Agrarian League. Parliament seized the sovereign power in Finland on 15 November 1917 based on the socialists' "Law of Supreme Power" and ratified their proposals of an eight-hour working day and universal suffrage in local elections, from July 1917.
Question: How many days after the armistice did peace negotiations begin?
Answer: 16; 16