The Communist Manifesto in specific countries in the mid-nineteenth century such as France, Switzerland, Poland, and Germany, this last being "on the eve of a bourgeois revolution", and predicts that a world revolution will soon follow. It ends by declaring an alliance with the social democrats, boldly supporting other communist revolutions, and calling for united international proletarian action—Working Men of All Countries, Unite!. In spring 1847 Marx and Engels joined the League of the Just, who were quickly convinced by the duo's ideas of "critical communism". At its First Congress in 2–9 June, the League tasked Engels with drafting a "profession of faith",
Manifesto of the Sixteen goal. The manifesto was signed by some of the most eminent anarchists in Europe. The signatories originally numbered fifteen, with the mistaken sixteenth name, "Hussein Dey", being the name of the city in which Antoine Orfila lived. As the manifesto's co-authors, Jean Grave and Peter Kropotkin were among its first signatories. From France, the anarcho-syndicalists Christiaan Cornelissen and François Le Levé were signatories; Cornelissen was a supporter of the "union sacrée", a truce between the French government and trade unions during the First World War, and wrote several anti-German brochures, while the thirty-two-year-old Le Levé later joined the French Resistance