Reto di liña di tempu

Pone e susesonan den órden kronológiko, for di bieu pa nobo.

1 Lenin works on Materialism and Empirio-Criticism

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2 Lenin’s pamphlet Left-Wing Communism reaches Comintern delegates

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3 The Treaty of Brest-Litovsk takes Russia out of the war

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4 Lenin publishes One Step Forward, Two Steps Back

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5 Lenin drafts The Impending Catastrophe and How to Combat It

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