Edward Heath in the context of "Secretary of State for the Environment"

One-nation conservatism, also known as one-nationism or Tory democracy, is a form of British political conservatism and a variant of paternalistic conservatism. It advocates the "preservation of established institutions and traditional principles within a political democracy, in combination with social and economic programmes designed to benefit the ordinary person". According to this political philosophy, society should be allowed to develop in an organic way, rather than being engineered. It argues that members of society have obligations towards each other and particularly emphasises paternalism, meaning that those who are privileged and wealthy should pass on their benefits. It argues that this elite should work to reconcile the interests of all social classes, including labour and management, rather than identifying the good of society solely with the interests of the business class.

The descriptive phrase 'one-nation Tory' originated with Benjamin Disraeli (1804–1881), who served as the chief Conservative spokesman and became Prime Minister in February 1868. He devised it to appeal to working-class people, who he hoped would see it as a way to improve their lives via factory and health acts as well as greater protection for workers. The ideology featured heavily during Disraeli's two terms in government, during which considerable social reforms were passed by the Parliament of the United Kingdom. Towards the end of the 19th century, the Conservative Party moved away from paternalism in favour of free market capitalism. In the first half of the 20th century, fears of extremism saw a revival of one-nation Conservatism. The Conservative Party continued to espouse the philosophy throughout the post-war consensus from 1945. One-nation thinking influenced their tolerance of the Labour government's Keynesian intervention in the economy, formation of a welfare state and the National Health Service. Thanks to Iain Macleod, Edward Heath and Enoch Powell, special attention after 1950 was paid to one-nation conservatism that promised support for the poorer and working class elements in the Party coalition.

Margaret Hilda Thatcher, Baroness Thatcher (née Roberts; 13 October 1925 – 8 April 2013), was a British stateswoman who served as Prime Minister of the United Kingdom from 1979 to 1990 and Leader of the Conservative Party from 1975 to 1990. She was the longest-serving British prime minister of the 20th century and the first woman to hold the position. As prime minister, she implemented policies that came to be known as Thatcherism. A Soviet journalist dubbed her the "Iron Lady", a nickname that became associated with her uncompromising politics and leadership style.

Thatcher studied chemistry at Somerville College, Oxford, and worked briefly as a research chemist before becoming a barrister. She was elected Member of Parliament for Finchley in 1959. Edward Heath appointed her secretary of state for education and science in his 1970–1974 government. In 1975, she defeated Heath in the Conservative Party leadership election to become leader of the opposition, the first woman to lead a major political party in the UK.

Philosophy, politics and economics, or politics, philosophy and economics (PPE), is an interdisciplinary undergraduate or postgraduate degree which combines study from three disciplines. The first institution to offer degrees in PPE was the University of Oxford in the 1920s. This particular course has produced a significant number of notable graduates such as Aung San Suu Kyi, Burmese politician and former State Counsellor of Myanmar, Nobel Peace Prize winner; Princess Haya bint Hussein, daughter of the late King Hussein of Jordan; Christopher Hitchens, the British–American author and journalist; Will Self, British author and journalist; Oscar-winning writer and director Florian Henckel von Donnersmarck; Michael Dummett, Gareth Evans, Philippa Foot, Christopher Peacocke, Gilbert Ryle, Paul Snowdon, and Peter Strawson, philosophers; Harold Wilson, Edward Heath, David Cameron, Liz Truss and Rishi Sunak, Prime Ministers of the United Kingdom; Hugh Gaitskell, Michael Foot, William Hague and Ed Miliband, former Leaders of the Opposition; former Prime Ministers of Pakistan Benazir Bhutto and Imran Khan; and Malcolm Fraser, Bob Hawke and Tony Abbott, former Prime Ministers of Australia; and Malala Yousafzai, Nobel Peace Prize winner.

In the 1980s, the University of York went on to establish its own PPE degree based upon the Oxford model; King's College London, the University of Warwick, the University of Manchester, and other British universities later followed. According to the BBC, the Oxford PPE "dominate[s] public life" in the UK. It is now offered at several other leading colleges and universities around the world. More recently Warwick University and King's College added a new degree under the name of PPL (Politics, Philosophy and Law) with the aim to bring an alternative to the more classical PPE degrees.

The February 1974 United Kingdom general election was held on Thursday 28 February 1974. The Labour Party, led by former Prime Minister Harold Wilson, gained 14 seats (301 total) but was seventeen short of an overall majority. The Conservative Party, led by Prime Minister Edward Heath, lost 28 seats (though it polled a higher share of the vote than Labour). That resulted in a hung parliament, the first since 1929. Heath sought a coalition with the Liberals, but the two parties failed to come to an agreement and so Wilson became prime minister for a second time, his first with a minority government. Wilson called another early election in September, which was held in October and resulted in a Labour majority. The February election was also the first general election to be held with the United Kingdom as a member state of the European Communities (EC), which was widely known as the "Common Market".

Its results saw Northern Ireland diverging heavily from the rest of the United Kingdom, with all twelve candidates elected being from local parties (eleven of them representing unionist parties) after the decision of the Ulster Unionists to withdraw support from the Conservative Party in protest over the Sunningdale Agreement. The Scottish National Party achieved significant success at the election by increasing its share of the popular vote in Scotland from 11% to 22%, and its number of MPs from one to seven. Plaid Cymru also succeeded for the first time in getting candidates elected at a general election in Wales (its sole previous seat was won at a by-election in 1966).

The 1975 United Kingdom European Communities membership referendum, also known variously as the Referendum on the European Community (Common Market), the Common Market referendum and EEC membership referendum, was a non-binding referendum that took place on 5 June 1975 in the United Kingdom (UK) under the provisions of the Referendum Act 1975 to ask the electorate whether the country should continue to remain a member of, or leave, the European Communities (EC) also known at the time as the Common Market — which it had joined as a member state two-and-a-half years earlier on 1 January 1973 under the Conservative government of Edward Heath. The Labour Party's manifesto for the October 1974 general election had promised that the people would decide through the ballot box whether to remain in the EC.

In a 1975 pamphlet, Prime Minister Harold Wilson said: "I ask you to use your vote. For it is your vote that will now decide. The Government will accept your verdict." The pamphlet also said: "Now the time has come for you to decide. The Government will accept your decision — whichever way it goes." The electorate expressed significant support for continued EC membership, with 67% in favour on a national turnout of 64%.

Edward Heath of the Conservative Party formed the Heath ministry and was appointed Prime Minister of the United Kingdom by Queen Elizabeth II on 19 June 1970, following the general election of the previous day. The Heath ministry ended after the February 1974 general election, which produced a hung parliament, leading to the formation of a minority government by Harold Wilson of the Labour Party.

Heath had been elected Leader of the Conservative Party in 1965 – succeeding Alec Douglas-Home – within a few months of the party's election defeat after 13 years in government. In the following year, his first general election as Leader resulted in defeat as Wilson's Labour government increased its majority. The Conservatives enjoyed a surge in support over the next two years as the British economy went through a period of deflation that culminated in a devaluation, at the same time that the merging of businesses was encouraged. Unemployment rose significantly, but when Wilson called a general election for June 1970, the opinion polls all pointed towards a third successive Labour victory. It was a major surprise when the Conservatives won with a majority of 30 seats.

The accession of the United Kingdom to the European Communities (EC) – the collective term for the European Coal and Steel Community (ECSC), the European Economic Community (EEC) and the European Atomic Energy Community (EAEC) – took effect on 1 January 1973. This followed ratification of the Accession treaty which was signed in Brussels on 22 January 1972 by the Conservative prime minister Edward Heath, who had pursued the UK's application to the EEC since the late 1950s. The ECSC and EEC would later be integrated into the European Union under the Maastricht and Lisbon treaties in the early 1990s and mid-2000s.

The UK had been the first country to establish a Delegation to the ECSC in 1952, and the first country to sign an Association Agreement with the Community in 1954. The UK had first applied to join in 1961, but this was vetoed by French President Charles de Gaulle. A second application, in 1967, was again vetoed by France. After de Gaulle had relinquished the French presidency in 1969, the UK made a third and successful application for membership. Denmark and Ireland also joined as part of the same expansion.