President Osmeña sent the Philippine delegation, which was headed by Carlos P. Romulo, to the San Francisco gathering for the promulgation of the Charter of the United Nations on 26 June 1945. Other members of the delegation were Maximo Kalaw, Carlos P. Garcia, Pedro Lopez, Francisco Delegado, Urbano Zafra, Alejandro Melchor, and Vicente Sinco. The 28th signatory nation of the United Nations, the Philippines was one of the fifty-one nations that drafted the UN Charter.