Karl Marx called the Communist League. Both Marx and Engels participated in drawing up the programme and organisational principles of the new Communist League. In late 1847, Marx and Engels began writing what was to become their most famous work – a programme of action for the Communist League. Written jointly by Marx and Engels from December 1847 to January 1848, "The Communist Manifesto" was first published on 21 February 1848. "The Communist Manifesto" laid out the beliefs of the new Communist League. No longer a secret society, the Communist League wanted to make aims and intentions clear to the general public
The Manifesto Group of 1952, the Manifesto Group did not seek to reconcile opposing wings of the Labour Party, and instead rigorously opposed the left. Mabon ensured the electoral success of Manifesto members to senior positions in the Labour Party, such as the Cabinet and NEC. George Robertson, who later became Secretary of State for Defence under Prime Minister Tony Blair, said that Manifesto under Dickson Mabon organised elections better than the Tribune Group had ever managed to. Two of the Manifesto Group's greatest achievements were the election of moderate Labour MP Cledwyn Hughes as Chairman of the Parliamentary Labour Party, and the