April 21: The planned city of Brasília is inaugurated and becomes the country's new capital, replacing Rio de Janeiro. The old federal district of which Rio was part, becomes the state of Guanabara.[2]
^Brasil, CPDOC-Centro de Pesquisa e Documentação História Contemporânea do. "MOVIMENTO JAN-JAN". CPDOC - Centro de Pesquisa e Documentação de História Contemporânea do Brasil (in Brazilian Portuguese). Retrieved 2022-11-11.