The United Nations Educational, Scientific and Cultural Organization (UNESCO ) is a specialized agency of the United Nations (UN) with the aim of promoting world peace and security through international cooperation in education, arts, sciences and culture. It has 194 member states and 12 associate members, as well as partners in the non-governmental, intergovernmental and private sector. Headquartered in Paris, France, UNESCO has 53 regional field offices and 199 national commissions. UNESCO was founded in 1945 as the successor to the League of Nations' International Committee on Intellectual Cooperation. UNESCO's founding mission, which was shaped by the events of World War II, is to advance peace, sustainable development and human rights by facilitating collaboration and dialogue among nations. It pursues this objective through five major programme areas: education, natural sciences, social/human sciences, culture and communication/information. UNESCO sponsors projects that improve literacy, provide technical training and education, advance science, protect independent media and press freedom, preserve regional and cultural history, and promote cultural diversity. The organization prominently helps establish and secure World Heritage Sites of cultural and natural importance. UNESCO is governed by the General Conference composed of member states and associate members, which meets biannually to set the agency's programs and budget. It also elects members of the executive board, which manages UNESCO's work, and appoints every four years a Director-General, who serves as UNESCO's chief administrator.