Three Thai documentary heritage items have been inscribed on the United Nations Educational, Scientific, and Cultural Organization (UNESCO)’s Memory of the World Register for 2025:
1. The Manuscript of Nanthopananthasut Kamlaung;
2. The King of the White Elephant and the archival documents;
3. The Birth of the Association of Southeast Asia Nations (ASEAN) (Archives about the Formation of ASEAN, 1967-1976).

You may find out more at https://thailand.prd.go.th/.../detail/id/48/iid/384629.