Jacques Lucien Jean Delors (20 July 1925 – 27 December 2023) was a French politician who served as president of the European Commission from 1985 to 1995. Delors played a key role in the creation of the single market, the euro and the modern European Union.

As president of the European Commission (EC), Delors was the most visible and influential leader in European affairs. He implemented policies that closely linked the member nations together and promoted the need for unity. He created a single market that made the free movement of persons, capital, goods, and services within the European Economic Community (EEC) possible. He also headed the Delors Committee, which proposed the monetary union to create the euro, a new single currency to replace individual national currencies. This was achieved by the signing of the Maastricht Treaty in 1992.

Delors was a member of the French Socialist Party. Before becoming president of the EC, he was France's finance minister from 1981 to 1984, and a member of the European Parliament from 1979 to 1981.

Born in Paris in a family originating from Corrèze, Delors first held in the 1940s through the 1960s a series of posts in French banking and state planning with the Bank of France. As a member of the French Confederation of Christian Workers (CFTC), he participated in its secularization and the foundation of the French Democratic Confederation of Labour (CFDT). In 1969, he became social affairs adviser to the Gaullist Prime Minister Jacques Chaban-Delmas, a move which was presented as part of Chaban's outreach to the centre-ground and first attracted media attention to Delors personally.

In 1957, Delors left the CFDT when he became a high government official to avoid conflicts of interests. In 1974, he joined the Socialist Party, with other left-wing Christians. He was one of the rare members of the party to be openly religious, thus challenging its long-standing secular tradition of laïcité. He served in the European Parliament from 1979 to 1981, becoming chairman of its Committee on Economic and Monetary Affairs, actively taking part in debates about economic, social, and monetary policies. Under President François Mitterrand, Delors served as Economics and Finance Minister from 1981 to 1983, and Economics, Finance, and Budget Minister from 1983 to 1984. He advocated a pause in the social policies, a clear acceptance of the market economy, and an alignment with European social democracy. Critically, he held the line on France's membership of the European Monetary System (EMS), giving priority to monetary stability over left-wing spending priorities. Mitterrand flirted with the idea of naming him Prime Minister, but never made the appointment.

Delors became the President of the European Commission in January 1985. During his presidency, he oversaw important budgetary reforms and laid the groundwork for the introduction of a single market within the European Community. It came into effect on 1 January 1993 and allowed the free movement of persons, capital, goods, and services within the Community. ...

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