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The Public Archives of the Empire was intended to safeguard public documents and was organized into three sections: Administrative, responsible for the documents of the Executive and Moderator powers; Legislative, in charge of the custody of the documents produced by the Legislative Power and the Historical Section, responsible for the most important documents for the history of Brazil. Its first headquarters was located in the building of the Ministry of the Empire, in the street of the Guarda Velha Street, current Treze de Maio Avenue. In 1844, the Public Archives of the Empire came to stay in Praça do Comércio, on Direita Street, today Primeiro de Março Avenue, Rio de Janeiro.