Born in London to an upper-middle-class family, Cameron was educated at Heatherdown School, Eton College, and Brasenose College, Oxford. From 1988 to 1993 he worked at the Conservative Research Department, assisting the Conservative Prime Minister John Major, before leaving politics to work for Carlton Communications in 1994. Becoming an MP in 2001, he served in the opposition shadow cabinet under Conservative leader Michael Howard, and succeeded Howard in 2005. Cameron sought to rebrand the Conservatives, embracing an increasingly socially liberal position. The 2010 general election led to Cameron becoming Prime Minister as the head of a coalition government with the Liberal Democrats – the youngest holder of the office since the 1810s. His premiership was marked by the ongoing effects of the late-2000s financial crisis; these involved a large deficit in government finances that his government sought to reduce through austerity measures. His administration introduced large-scale changes to welfare, immigration policy, education, and healthcare. It privatised the Royal Mail and some other state assets, and legalised same-sex marriage in Great Britain.