Lenin wrote this article for the Encyclopaedia Dictionary published by the Granat Brothers, which was then the most popular in Russia. In the preface for the pamphlet edition in 1918 Lenin gave the date of writing as 1913, from memory. Actually, he began it in the spring of 1914 in Poronin, but had to interrupt it, being too busy with his work guiding the Party and the newspaper Pravda. Lenin resumed his work on the article only in September that year, after he had moved to Berne, and finished it in the first half of November.The article was published in 1915 in Volume 28 of the Dictionary with Bibliography of Marxism appended to it; it was signed V. Ilyin. For censorship reasons, the editors omitted two chapters: Socialism and Tactics of the Class Struggle of the Proletariat and made a number of changes in the text.In 1918, the Priboi Publishers put out the article in pamphlet form exactly as published in the Dictionary but without the "Bibliography."The full text of the article according to the manuscript was first published by the Lenin Institute of the C.P.S.U. Central Committee in the collection of Lenin's articles Marx, Engels, Marxism, which appeared in 1925.Note that this document has undergone special formatting to ensure that Lenin's side notes fit on the page, marking as best as possible where they were located in the original manuscript.