| January 1 (14) | Lenin’s article “Four Thousand Rubles a Year and a Six-Hour Day” published in Proletarskaya Pravda No. 19. |
| January, prior to 5th (18th) | Lenin arrives in Paris. |
| January 5 (18th) | At a meeting of Bolsheviks in Paris Lenin reports on the International Socialist Bureau’s intervention in the affairs of the R.S.D.L.P. with the purpose of reconciling the Bolsheviks with the Mensheviks |
| January 9 (22) | Lenin addresses two meetings of the Social-Democrats in Paris marking the anniversary of the Ninth of January 1905. |
| January 10 (23) | In the assembly hall of the Geographical Society in Paris Lenin lectures on the subject of “The National Question”. |
| January, prior to 12th (25th) | Lenin arrives in Brussels. |
| January 13 (26) | Lenin forwards to Paris edited copy for the Bulletin of the C.C. of the R.S.D.L.P. No. 1. The Bulletin appeared in Paris on January 28 (new style). |
| January 13-20 (January 26-February 2) | Lenin attends the Fourth Congress of the Social-Democrats of the Lettish Region and makes a report criticising the activities of the Central Committee of the Lettish Social-Democrats, which took an opportunist stand. |
| January 18 (31) | Lenin’s article “Is a Compulsory Official Language Needed?” published in Proletarskaya Pravda No. 14 (32). |
| January 18-19 (January 31-February 1) | Lenin writes a brief report to Huysmans, Secretary of the International Socialist Bureau, concerning the main points of difference between the Central Committee of the R.S.D.L.P. and the liquidators’ Organising Committee. |
| January 20 (February 2) | In Liége Lenin delivers a lecture on “The National Question”. |
| Between January 21 and 24 (February 3 and 6) | In Leipzig Lenin delivers a lecture on “The National Question”. |
| January 24 (February 6) | Lenin returns to Cracow. |
| January 25 (February 7) | Issue No. 1 of the journal Prosveshcheniye appears with an article by Lenin entitled “The Purpose of Zemstvo Statistics”, and a review of the book Labour Protection Exhibits at the All-Russia Hygiene Exhibition in St. Petersburg in 1913. |
| January 31 (February 13) | Lenin’s article “The Liberals’ Corruption of the Workers” and “Letter to the Editor” published in the newspaper Put Pravdy No. 9. |
| February 4 (17) | Put Pravdy No. 12 publishes Lenin’s article “The Liquidators’ Leader on the Liquidators’ Terms of ‘Unity’”. |
| February 5 (18) | Lenin’s articles “A Contribution to the History of the National Programme in Austria and in Russia” and “A Highborn Liberal Landlord on the ‘New Zemstvo Russia’” published in Put Pravdy No. 13. |
| February 18 (March 3) | Lenin’s article “Narodism and the Class of Wage-Workers” published in Put Pravdy No. 15. |
| February 20 (March 5) | Lenin’s articles “More About ‘Nationalism” and “The Peasantry and Hired Labour” published in Put Pravdy No. 17. |
| February 21 (March 6) | Put Pravdy No. 18 publishes Lenin’s article “Mr. Struve on the Need to ‘Reform the Government’”. |
| February 22 (March 7) | Lenin’s article “The Narodniks on N. K. Mikhailovsky” published in Put Pravdy No. 19. |
| February 25 (March 10) |
Lenin’s article “Concerning A. Bogdanov” published in Put Pravdy No. 21. Issue No. 2 of the journal Prosveshcheniye appears with an article by Lenin “Editorial Comment on Veteran’s Article: ‘The National Question and the Lettish Proletariat’”. |
| February-April | Lenin draws up the plan for the symposium Marxism and Liquidationism, and writes the Preface and Concluding Remarks to it. |
| February-May | Lenin writes the article “The Right of Nations to Self-Determination”. |
| March 1 (14) | Lenin’s article “Political Disputes Among the Liberals” published in Put Pravdy No. 25. |
| March 2 (15) | Lenin’s article “The ‘Labouring’ Peasantry and the Trade in Land” published in Put Pravdy No. 26. |
| March 6 (19) | Put Pravdy No. 29 publishes Lenin’s article “What is Worrying the Liberals”. |
| March 7 (20) | Lenin’s article “Narodniks and Liquidators in the Trade Union Movement (A Valuable Admission)” published in Put Pravdy No. 30. |
| March 8 (21) | In Cracow Lenin delivers a lecture on the subject “Russian Social-Democracy and the National Question”. |
| March 9 (22) | Lenin’s article “Pious Wishes” published in Put Pravdy No. 32. |
| March 11 (24) |
Lenin declines an invitation from the editors of Sovremennik to contribute to their journal, on the grounds that he does not agree with their programme. Put Pravdy No. 33 publishes Lenin’s article “A Liberal Professor on Equality”. |
| March 12 (25) | Lenin’s article “The British Liberals and Ireland” published in Put Pravdy No. 34. |
| March 13 (26) | Issue No. 35 of Put Pravdy publishes Lenin’s article “The Taylor System—Man’s Enslavement by the Machine”. |
| March 14 (27) | Lenin’s article “A ‘Responsible Opposition’, and the Participation of the Constitutional-Democrats in the March 1 Conference” published in Put Pravdy No. 36. |
| March 15 (28) | Lenin’s article “The Break-up of the ‘August’ Bloc” published in Put Pravdy No. 37. |
| March 19 (April 1) | Lenin forwards the draft of his “Appeal to the Ukrainian Workers” for Ocksen Lola. |
| March 20 (April 2) | Lenin’s article “Capitalism and the Press” published in Put Pravdy No. 41. |
| March 22 (April 9) | Issue No. 3 of Prosveshcheniye appears with Lenin’s articles “A Radical Bourgeois on the Russian Workers” and “Political Lessons”. |
| March 28 (April 10) | Lenin’s draft of “The National Equality Bill published in Put Pravdy No. 48. |
| March 29 (April 11) | Put Pravdy No. 49 publishes Lenin’s article “Farm Labourers’ Wages”. |
| March 30 (April 12) | Lenin’s articles “The Lettish Workers and the Split in the Social-Democratic Group in the Duma” and “The ‘August’ Fiction Exposed” published in Put Pravdy No. 50. |
| March | Lenin’s article “Socialism Demolished Again” published in the journal Sovremenny Mir No. 3. |
| March-April | Lenin writes his article “How the Workers Responded to the Formation of the Russian Social-Democratic Labour Group in the Duma”. |
| April 4 (17) | Put Pravdy No. 54 publishes Lenin’s article “Forms of the Working-Class Movement (The Lockout and Marxist Tactics)”. |
| April 6 (19) | Lenin’s article “The Left Narodniks Whitewash the Bourgeoisie” published in Put Pravdy No. 56. |
| April, after 6th (19th) | Lenin writes the draft of the speech “On the Question of National Policy” for the Bolshevik group in the Duma. |
| April 10 (23) | Lenin’s article “Constitutional Crisis in Britain” published in Put Pravdy No. 57. |
| April 12 (25) | Put Pravdy No. 59 publishes Lenin’s article “Unity”. |
| April 15 (28) | Lenin’s article “Organised Marxists on Intervention by the International Bureau” published in Put Pravdy No. 61. |
| April 16 (29) | Lenin’s articles “National Equality” and “The Liquidators and the Lettish Working-Class Movement” published in Put Pravdy No. 62. |
| April 20 (May 3) | Put Pravdy No. 66 publishes Lenin’s article “Serf Economy in the Rural Areas”. |
| April 22 (May 5) |
Lenin’s article “From the History of the Workers’ Press in Russia” published in the newspaper Rabochy No. 1. Issue No. 4 of the journal Prosveshcheniye appears with Lenin’s articles: “The Right of Nations to Self-Determination”, and “What Should Not Be Copied From the German Labour Movement”, and a review of the book Among Books by N. A. Rubakin. |
| April prior to 26th (May 9th) | Lenin conducts a joint meeting of members of the Central Committee and of the Bolshevik Duma group to discuss participation in the Vienna Congress of the Second International and preparations for a Party congress. |
| April 26 (May 9) | Lenin moves from Cracow to Poronin. |
| April 29 (May 12) | Lenin’s article “Liquidationism Defined” published in Put Pravdy No. 73. |
| May 3 (16) | Lenin’s article “More About the Political Crisis” published in Put Pravdy, issue No. 76. |
| May 4 (17) | Lenin’s article “The Ideological Struggle in the Working-Class Movement” published in Put Pravdy No. 77. |
| May, after 6th (19th) | Lenin drafts the “Bill on the Equality of Nations and the Safeguarding of the Rights of National Minorities”. |
| May 8 (21) | Lenin’s article “Neighbouring Squires” published in Put Pravdy No. 80. |
| May 9 (22) | Lenin’s article “The Narodniks and ‘Factional Coercion’” published in issue No. 81 of Put Pravdy. |
| May 10 (23) | Lenin’s article “Corrupting the Workers with Refined Nationalism” published in Put Pravdy No. 82. |
| May 18 (26) | Lenin’s articles “The Political Situation” and “Workers’ Unity and Intellectualist ‘Trends’” published in Put Pravdy No. 85. |
| May 14 (27) | Lenin’s article “The Left Narodniks” published in issue No. 86 of Put Pravdy. |
| May 24 (June 6) | Lenin’s article “Two Paths” published in the newspaper Rabochy No. 3. |
| May 25 (June 7) | Issue No. 4 of Rabochy appears containing Lenin’s article “Plekhanov, Who Knows Not What He Wants”. |
| May, prior to 28th (June 10th) | Lenin writes the draft of a speech on “The Estimates of the Ministry of Agriculture” for the Bolshevik group in the Duma. |
| May 30 (June 12) | Lenin’s article “Unity” published in the newspaper Trudovaya Pravda No. 2. |
| June 1 (14) | Issue No. 5 of the journal Prosveshcheniye appears featuring Lenin’s articles “The Right of Nations to Self-Determination” (continued), “A Fool’s Haste Is No Speed”, “Disruption of Unity Under Cover of Outcries for Unity” and the review of I. Drozdov’s book The Wages of Farm Labourers in Russia in Connection With the Agrarian Movement in 1905-06. |
| June 5 (18) | Lenin’s article “Clarity Has Been Achieved. Class-Conscious Workers, Please Note” published in Trudovaya Pravda No. 7. |
| June 9 (22) | Issue No. 7 of Rabochy appears containing articles by Lenin “Adventurism”, and “The Liquidators and the Decisions of the Lettish Marxists”. |
| June 13 and 14 (26 and 27) | Lenin’s article “The Working Class and Its Press” published in Trudovaya Pravda Nos. 14 and 15. |
| June 19 (July 2) | Lenin’s article “Left-Wing Narodism and Marxism” published in Trudovaya Pravda No. 19. |
| June 22 (July 5) | Lenin’s article “The Agrarian Question in Russia” published in Trudovaya Pravda No. 22. |
| June 23 (July 6) | Lenin determines the make-up of the delegation of the R.S.D.L.P.’s Central Committee to the Brussels Conference convened by the International Socialist Bureau and representing all trends in Russian Social-Democracy. |
| June 23-30 (July 6-13) | Lenin writes the Report of the C.C. of the R.S.D.L.P. to the Brussels Conference and Instructions to the C.C. Delegation. |
| June 24 (July 7) | Lenin’s article “The Political Significance of Vituperation (On the Question of Unity)” published in Trudovaya Pravda No. 23. |
| June 26 (July 9) | Trudovaya Pravda, issue No. 25, publishes Lenin’s article “Objective Data on the Strength of the Various Trends in the Working-Class Movement”. |
| June 28 (July 11) |
Lenin’s article “How Strong Is the Left-Narodnik Trend Among the Workers” published in Trudovaya Pravda No. 27. Issue No. 6 of Prosveshcheniye appears featuring Lenin’s articles “The Right of Nations to Self-Determination” (concluded), “The Bourgeois Intelligentsia’s Methods of Struggle Against the Workers” and “The Vperyodists and the Vperyod Group. |
| June 29 (July 12) | Lenin’s “Editorial Comment on Ocksen Lola’s ‘Appeal to the Ukrainian Workers’” published in Trudovaya Pravda No. 28. |
| June 30 (July 13) | Lenin sends the Report of the Central Committee, written by him, to the delegation of Bolsheviks at the Brussels Conference. |
| July 2 (15) | Trudovaya Pravda No. 30 publishes Lenin’s article “Clarity First and Foremost! (On the Question of Unity) |
| July 2 and 3 (15 and 16) | Lenin’s article “The Results of Workers’ Press Day Summed Up. From the Report Published in Put Pravdy” published in Nos. 30 and 31 of Trudovaya Pravda. |
| July 3-5 (16-18) | From Poronin (Galicia), Lenin directs the activities of the Bolshevik delegation at the Brussels Conference. |
| July 5 (18) | The symposium Marxism and Liquidationism, Part II, prepared by Lenin, is published. |
| July, after 5th (18th) | Lenin writes a letter to V. M. Kasparov in Berlin asking for information about revolutionary developments in Russia. |
| July prior to 6th (19th) | Lenin chairs a meeting of C.C. members with Party workers newly arrived from Russia concerning the activities of the Duma group and preparations for the Party congress. |
| July, after 6th (19th) | Lenin drafts the plan of the R.S.D.L.P. Central Committee report to the Vienna Congress. |
| July, after 7th (20th) | Lenin writes the article “The Polish Social-Democratic Opposition at the Parting of the Ways”. |
| July 8 (21) | Lenin’s reply to the article in Leipziger Volkszeitung published in issue No. 165 of that newspaper. |
| July 15 (28) | Lenin agrees to complete the article on “Karl Marx” for the Granat Encyclopaedic Dictionary. |
| Between July 15 and 17 (28 and 30) | Lenin outlines the contents of the current issue of the newspaper Sotsial-Demokrat, drafts the plan of the leading article “Revolution and War”, and deals with the technical details of publication (format, number of characters, etc.). |
| July 25 (August 7) | Lenin’s rooms in Poronin (Galicia) are searched by Austrian authorities. |
| July 26 (August 8) | Lenin arrested in Nowy Targ (Galicia). |
| August 6 (19) | Lenin released from prison. |
| August 13-16 (26-29) | Lenin receives permission in Poronin and subsequently in Cracow to leave Austria-Hungary for Switzerland. Lenin goes to Switzerland. |
| August 23 (September 5) | Lenin arrives in Berne (Switzerland). |
| August 23 (September 5) | Lenin arrives in Berne (Switzerland) from Poronin (Galicia). |
| August 24-26 (September 6-8) | Lenin reports on the attitude towards the war at a conference of the Bolsheviks, in Berne. His theses on the war are adopted as a resolution of the Social-Democratic group. |
| Late August-September |
Lenin writes the draft of the article “The European War and International Socialism”. The article was not completed. Lenin sends his theses on the war to Bolshevik groups abroad and to Russia for discussion by the Russian section of the Central Committee of the R.S.D.L.P., Party organisations and the Duma group. |
| August-November 1 | Lenin continues writing the article “Karl Marx” for the Granat Encyclopaedia. The article was not completed. |
| September 1 (27) | Lenin’s theses on the war are discussed at the Conference of Italian and Swiss Socialists in Lugano (Switzerland). A number of the propositions contained in the theses are incorporated in the Conference resolution. |
| Prior to September 27 (October 10) | Lenin delivers a lecture on the war, in Berne. |
| September 27 (October 10) | In Berne, Lenin takes part in the discussion on V. Kosovsky’s report “The War and Social-Democracy”. |
| Prior to September 28 (October 11) | Lenin draws up the manifesto of the Central Committee of the R.S.D.L.P., “The War and Russian Social-Democracy”, and instructs the Geneva Bolshevik group to publish it as a pamphlet. |
| September 28 (October 11) | In Lausanne, Lenin takes part in the discussion on Plekhanov’s report “The Attitude of the Socialists Towards the War”, and criticises his chauvinist stand. |
| September-October | Lenin works on his pamphlet “The European War and European Socialism”, collects material, makes extracts from books and articles in the Russian and foreign press, makes notes, draws up a conspectus and plan of the pamphlet. It was not written. |
| October 1 (14) | Lenin delivers a lecture on “The Proletariat and the War” in Lausanne. |
| October 2 (15) | Lenin makes a report “The European War and Socialism”, in Geneva. |
| October 3 (16) | Lenin returns to Berne where he learns that the Russian section of the R.S.D.L.P. Central Committee supports his theses on the war. |
| October 4 (17) | Lenin decides to resume publication of the newspaper Sotsial-Demokrat, Central Organ of the R.S.D.L.P., and gives the Bolshevik group in Geneva practical instructions for its publication. |
| October 13 (26) | At Clarens, near Montreux (Switzerland), Lenin delivers a lecture on the war. |
| Not earlier than October 14 (27) | Lenin delivers a lecture “The War and Social-Democracy”, in Zurich. |
| October 19 (November 1) | After one year’s interval, publication of Sotsial-Demokrat is resumed under Lenin’s editorship. No. 33 of the newspaper carries the manifesto of the Central Committee of the R.S.D.L.P. “The War and Russian Social-Democracy” and the article “The Position and Tasks of the Socialist International”. |
| Between October 29 and November 8 (November 11-21) | Lenin writes a letter to the editors of Vorwärts and the Vienna Arbeiter-Zeitung protesting against the distorted reports of his Zurich lecture on the war. |
| October 31 (November 13) | The manifesto of the Central Committee of the R.S.D.L.P. “The War and Russian Social-Democracy” is published in abridged form in the Swiss newspaper La Sentinelle. |
| November 4 (17) | Lenin sends the “Karl Marx” manuscript to the publishers of the Granat Encyclopaedia in Russia. |
| Not later than November 5 (18) | Lenin sends the manifesto of the Central Committee of the R.S.D.L.P. “The War and Russian Social-Democracy” to French, English and German Social-Democratic newspapers. |
| November 8 (21) | Lenin instructs the Bolshevik group in Geneva to arrange for Inessa Armand’s lecture in French: “Various Trends Among Russian Socialists on the Question of the War”. |
| November 22 (December 5) | Lenin’s article “A German Voice on the War” is published in Sotsial-Demokrat No. 34. |
| After November 23 (December 6) | Lenin replies to a question from the British Independent Labour Party concerning the Bolsheviks’ attitude towards the war and the peace programme. |
| November 29 (December 12) | Lenin’s articles “Dead Chauvinism and Living Socialism (How the International Can be Restored?)” and “On the National Pride of the Great Russians” appear in Sotsial-Demokrat No. 35. |
| December 3 (16) | Lenin criticises Martov’s report “The War and the Crisis of Socialism” in Berne. |
| December 25 (January 7 1915) | Lenin writes a letter on behalf of the Bureau Abroad of the R.S.D.L.P. Central Committee condemning the separatist actions of the anti-Party Baugy group of Bukharin and Pyatakov, who intended publishing their own newspaper without a decision by the Central Committee. |
| December 27 (January 9, 1915) | Lenin’s article “What Next? (On the Tasks Confronting the Workers’ Parties with Regard to Opportunism and Social-Chauvinism)” appears in Sotsial-Demokrat No. 36. |
| September 1914-May 1915 | At the Berne Library, Lenin studies the works of Feuerbach, Hegel, Aristotle and other philosophers, collects material for his “Notebooks on Philosophy”, draws up conspectuses, and writes notes on materialist dialectics. |
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