The Communist Manifesto weeks later, around 20 March, a thousand copies of the "Manifesto" reached Paris, and from there to Germany in early April. In April–May the text was corrected for printing and punctuation mistakes; Marx and Engels would use this 30-page version as the basis for future editions of the "Manifesto". Although the "Manifesto"s prelude announced that it was "to be published in the English, French, German, Italian, Flemish and Danish languages", the initial printings were only in German. Polish and Danish translations soon followed the German original in London, and by the end of 1848, a Swedish translation was published with
Ventotene Manifesto future wars. Vayssière notes that the manifesto is widely seen as the birth of European federalism. Spinelli (1907–86), a former Communist, became a leader of the federalist movement due to his primary authorship of the Manifesto and his postwar advocacy. The manifesto called for a break with Europe's past to form a new political system through a restructuring of politics and extensive social reform. It was presented not as an ideal, but as the best option for Europe's postwar condition. The most important assessment was the assertion that This statement was in contrast with the idea, then prevailing, that unity