Jacques Delors is a French politician and economist, best known for his role as the President of the European Commission from 1985 to 1995. He played a significant part in the development of the European Union, promoting economic integration and the creation of the Single Market, which aimed to facilitate trade and movement among member states. Delors was instrumental in the establishment of the Maastricht Treaty, which laid the groundwork for the introduction of the Euro as a common currency. His vision for a united Europe emphasized cooperation and solidarity among nations, influencing the direction of European politics and economics during his tenure.