October 14, 1951 (, Xin Mao on September 14), the Organization of American States.

1951 10, 14, Costa Rica, El Salvador, Guatemala, Honduras and Nicaragua in the capital, San Salvador, El Salvador signed the Central American countries, the Charter of the Organization, the establishment of regional international organizations, the Organization of American States & rdquo ;. Its purpose is to strengthen the unity of the Central American countries, through joint action to promote the economic, social and cultural development. In August 1962, the five countries after the establishment of the Central American Common Market and Bank signed the new Charter, the reorganization of the headquarters in San Salvador. Agencies, including the presidential meeting, the foreign ministers' meeting, the Economic Council. The foreign ministers' meeting usually once a year. Publications Education Press Releases "and" labor news briefing. "