First International

"Upon the whole, the Provisional Central Council recommend the plan of organisation as traced in the Provisional Statutes. Its soundness and facilities of adaptation to different countries without prejudice to unity of action have been proved by two years' experience. For the next year we recommend London as the seat of the Central Council, the Continental situation looking unfavourable for change."

Marx was asked in the summer of 1851 by Charles Anderson Dana, managing editor of the New York Tribune, to write a series of articles on the German Revolution. Founded in 1842 by Horace Greeley, the Tribune was the most influential paper in the United States at the time. These articles were written by Engels at the request of Marx, who was then busy with his economic studies and felt, besides, that he had not yet attained fluency in English. 

"This work was Marx's first attempt, with the aid of his materialist conception, to explain a section of contemporary history from the given economic situation. Here the question was to demonstrate the inner causal connection in the course of a development which extended over some years, a development as critical, for the whole of Europe, as it was typical; that is, in accordance with the conception of the author, to trace political events back to the effects of what are, in the last resort, economic causes." (introduction by Engels)

"In the two revolutionary years of 1848-49 the League proved itself in two ways. First, its members everywhere involved themselves energetically in the movement and stood in the front ranks of the only decisively revolutionary class, the proletariat, in the press, on the barricades and on the battlefields. The League further proved itself in that its understanding of the movement, as expressed in the circulars issued by the Congresses and the Central Committee of 1847 and in the Manifesto of the Communist Party, has been shown to be the only correct one, and the expectations expressed in these documents have been completely fulfilled."