In 1942, the report by Sir William Beveridge was published, Social Insurance and Allied Services, Cmd 6904, London: HMSO. This has been recognised as a watershed moment; Beveridge declared war on the five 'giant evils': 'want, disease, ignorance, squalor and idleness'. The report sold half a million copies at home, and edited versions were dropped behind enemy lines indicating the kind of Britain that would exist after the war. The proposals in the report became the basis of the legislation through which the Attlee government created the welfare state, with citizens guaranteed a safety net 'from the cradle to the grave'.
Reference: Chris Renwick (2017) Bread for All. The Origins of the Welfare State, Allen Lane, London.