The document discusses the ideological divisions within the Labour Party in the UK between Gaitskellism and Bevanism from 1951 to 1964, highlighting key figures and their contrasting beliefs regarding socialism, state control, and foreign policy. Gaitskellism, represented by Hugh Gaitskell and his followers, favored a more centrist, revisionist approach, while Bevanism, led by Aneurin Bevan, advocated for a traditional Marxist model with strong state intervention. The summary also touches on the consequences of these divisions, detailing how they shaped the party's future and led to the formation of the Social Democratic Party (SDP).