Short answers, pulled from the story.
UNESCO was founded in 1945 as the successor to the League of Nations' International Committee on Intellectual Cooperation. Its founding mission is to advance peace, sustainable development, and human rights through international cooperation in education, natural sciences, social and human sciences, culture, and communication.
UNESCO is headquartered at Place de Fontenoy in Paris, France. It has 194 member states and 12 associate members, along with 53 regional field offices and 199 national commissions worldwide.
The United States first withdrew in 1984, citing the organization's perceived politicization, hostility toward free-market and free-press values, and poor management under Director-General Amadou-Mahtar M'Bow. It rejoined on the 1st of October 2003, withdrew again on the 31st of December 2018 over anti-Israel bias and mounting arrears, rejoined in July 2023 pledging to pay $600 million in back dues, and announced a third withdrawal in July 2025, effective at the end of 2026.
The World Heritage program stems from the Convention concerning the Protection of the World Cultural and Natural Heritage, adopted in 1972. The World Heritage Committee was established in 1976, and the first sites were inscribed on the World Heritage List in 1978.
The MacBride report was produced in 1980 by the International Commission for the Study of Communication Problems, chaired by Nobel Peace Prize laureate Sean MacBride. It called for democratization of global media and more egalitarian access to information, which the United States and United Kingdom condemned as an attempt to curb press freedom, contributing to both countries withdrawing from UNESCO in 1984 and 1985 respectively.
UNESCO launched the International Campaign to Save the Monuments of Nubia in 1960 to relocate the Great Temple of Abu Simbel before it was submerged by waters rising behind the Aswan Dam. Over a twenty-year period, 22 monuments and architectural complexes were relocated, establishing a model for international heritage rescue that was later applied at sites including Borobudur in Indonesia and the Acropolis of Athens.