
Provinces of Brazil

The provinces of Brazil were the primary subdivisions of the country during the period of the Empire of Brazil (1822 - 1889).
On February 28, 1821, provinces were established in the Kingdom of Brazil (then still part of the United Kingdom of Portugal, Brazil and the Algarves) superseding the captaincies that were in place at the time.
Changes from 1821-1889.
1821.
The captaincies of Brazil are renamed provinces.
The present-day Uruguay is occupied by the Portuguese Army and incorporated in Brazil as its Cisplatine Province.
1822.
Independence of Brazil, with the provinces becoming provinces of the Empire of Brazil.
1823.
The last Brazilian provinces that remained loyal to the Portuguese Government in Lisbon adhere to the Empire of Brazil.
1828.
Cisplatina Province became the independent state of Uruguay.
1834.
Rio de Janeiro City, the imperial capital, was removed from the Province of Rio de Janeiro, and was included in the Neutral Municipality. At the same time, the capital of the Province of Rio de Janeiro was transferred to Niterói. 
1850.
Grão-Pará Province split into Amazonas Province and Pará Province.
1889.
In 1889 the Empire of Brazil became the Republic of the United States of Brazil and the provinces became states. The Neutral Municipality that included Rio de Janeiro City became the .