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
History of modernisation theory allows people to think in new and innovative ways; innovation is thus coeval with modernisation. Among the academics who contributed much to this theory are W. W. Rostow, who in his "The Stages of Economic Growth: A Non-Communist Manifesto" (1960) concentrates on the economic system side of the modernisation, trying to show factors needed for a country to reach the path to modernisation in his Rostovian take-off model. David Apter concentrated on the political system and history of democracy, researching the connection between democracy, good governance and efficiency and modernisation. Seymour Martin Lipset in "Some Social Requisites of Democracy" (1959)