El Salvador joined UNESCO on April 28, 1948.
In 2007, under the auspices of UNESCO’s Man and the Biosphere programme, the country acquired its first biosphere reserves: Apaneca-Llamatepec, a key ecosystem with much potential for sustainable coffee production and field research; and Xiriualtique Jiquilisco, the country’s largest expanse of mangroves.
As part of its cooperation with UNESCO in education, El Salvador is active in revitalizing the "Regional Convention on the Recognition of Studies, Diplomas and Degrees in Latin America and the Caribbean" and hosted an intergovernmental meeting in San Salvador in 2006.
The country’s Joya de Ceren Archaeological Site is on the World Heritage List since1993. A pre-Hispanic farming community, it was buried and preserved by a volcanic eruption circa A.D. 600.
The UNESCO project “Museums and Communities for Development in Central America” is helping revitalize production of Black Pottery from the Guatajiagüa community.