Written on New Year’s Day 1885 by William Morris and Ernest Belfort Bax, 'The Manifesto of the Socialist League' sets out the aims of the fledgling political group. After splitting from the Social Democratic Federation, Morris along with Bax, Edward Aveling, Eleanor Marx and others founded the Socialist League as a more radical group that sought ‘the realization of complete revolutionary Socialism’.
Ernest Belfort Bax was a barrister and historian described by May Morris, William’s younger daughter, as "the learned and distinguished philosopher". Bax taught Morris economics and Marxism in regular sessions that Morris referred to as "compulsory Baxination".
The Socialist League logo featured on this pamphlet was designed by Walter Crane. Crane also produced illustrations for membership cards, invitations and posters for the group. His monochrome illustrations and engravings came to define Socialist and trade union imagery for the next thirty years.