sentences:  At the time of the Cry of Independence in 1810, Álvarez was a member of the city council, and in that capacity he signed the Declaration of Independence.He became part of the Supreme Governing Junta, presided over by José Miguel Pey de Andrade, and on July 26 Álvarez signed the document withdrawing recognition from the Council of Regency in Spain.He was named to the treasury section of the Junta, and also began editing the periodical "Aviso al Público" (Warning to the Public).