The government of Brazil was moved to Distrito Federal on April 21, 1960. Before this, the Brazilian Federal District used to be the municipality of Rio de Janeiro. Afterwards, the municipality of Rio de Janeiro became the Estado da Guanabara (State of Guanabara), from 1960 until 1975. In 1975, the State of Guanabara and the State of Rio de Janeiro merged, to be named the state of Rio de Janeiro.