The Constitution of the United Nations Educational, Scientific and Cultural Organization (UNESCO Constitution) is a global supranational meta-framework education-science-culture binding-treaty instrument adopted by the London Conference for the Establishment of an Educational and Cultural Organizati…
UNESCO Constitution adopted 16 November 1945 in London by 37 founding states — formal universal multilateral binding-treaty framework adopted.
UNESCO Constitution entered force 4 November 1946 + United Nations Educational, Scientific and Cultural Organization UNESCO formally established 4 November 1946 — formal foundational UNESCO treaty framework operational + second UN specialized agency after ILO 1946 framework.
UNESCO Convention against Discrimination in Education adopted 14 December 1960 — formal foundational education-non-discrimination framework adopted.
UNESCO Convention concerning the Protection of the World Cultural and Natural Heritage adopted 16 November 1972 — formal foundational world-heritage framework adopted.
UNESCO World Heritage Convention entered force 17 December 1975 + UNESCO World Heritage Committee established 1976 — formal world-heritage framework operational.
United States withdrew from UNESCO 31 December 1984 under President Ronald Reagan — formal UNESCO membership framework.
UNESCO Convention for the Safeguarding of the Intangible Cultural Heritage adopted 17 October 2003 + United States rejoined UNESCO 1 October 2003 under President George W. Bush — formal foundational intangible-cultural-heritage framework + US re-accession framework.
United States withdrew from UNESCO 31 December 2018 under President Donald Trump over Israel-related framework — formal UNESCO membership framework.
United States rejoined UNESCO 30 June 2023 under President Joe Biden — formal US re-accession framework.
Continuing UNESCO membership framework 2025 — Trump 2.0 Executive Order 4 February 2025 ordering US withdrawal from UNESCO + structurally distinctive globally third US withdrawal from UNESCO (1984 Reagan + 2018 Trump 1.0 + 2025 Trump 2.0) + ongoing UNESCO 80th anniversary framework 1945-2025 + continuing 194 member states + ongoing structurally distinctive globally only modern global supranational multilateral framework subject to three US withdrawals.