New Labour is the political philosophy that dominated the history of the British Labour Party from the mid- to late 1990s until 2010 under the leadership of Tony Blair and Gordon Brown. The term originated in a conference slogan first used by the party in 1994, later seen in a draft manifesto which was published in 1996 and titled
New Labour, New Life for Britain. It was presented as the brand of a newly reformed party that had altered the old Clause IV and instead endorsed market economics. The branding was extensively used while the party was in government between 1997 and 2010. New Labour was influenced by the political thinking of Anthony Crosland and the leadership of Blair and Brown as well as Peter Mandelson and Alastair Campbell's media campaigning. The political philosophy of New Labour was influenced by the party's development of Anthony Giddens' Third Way which attempted to provide a synthesis between capitalism and socialism. The party emphasised the importance of social justice, rather than equality, emphasising the need for equal opportunity and believed in the use of markets to deliver economic efficiency and social justice.