Marx and Engels develop the Brussels Communist Correspondence Committee

Under Prussian pressure, French authorities ordered Marx to leave. In Brussels he worked with Engels and other exiles, developing a critique of idealist philosophy and building cross-border...

Drawing on Manchester research, Engels documented housing, health, wages, and industrial discipline. It made working-class conditions central to socialist analysis, though its depiction of the city...

In brief notes later edited and published by Engels, Marx argued that social reality must be understood through human activity and practice. The famous eleventh thesis challenged philosophy to...

Their manuscript criticized Young Hegelian idealism and developed a materialist account of historical change. It was not published in their lifetimes; the text became influential through later...

The committee connected socialist groups across Europe and sought to replace abstract debate with coordinated political exchange. Marx and Engels acted as organizers and polemicists within a...

At its first congress, the League adopted a more explicitly communist program and the slogan “Workers of all countries, unite!” Marx and Engels helped shape the organization, whose international...

Marx’s polemic against Pierre-Joseph Proudhon challenged attempts to imagine social justice without analyzing production, class, and historical change. The book’s dialogue with French socialism was...

Engels wrote a question-and-answer outline for the Communist League, clarifying positions on class, industry, and political change. It became a working precursor to the Manifesto and shows Engels’s...

At its second congress, the League asked Marx and Engels to prepare a public program. The decision followed collective debate among delegates and members; it was not a solitary authorship moment, even...

Commissioned by the Communist League and written principally by Marx with Engels’s collaboration, the Manifesto analyzed capitalism’s globalizing power and called for working-class political action....