List of provinces and districts of Amazonas (Portuguese Butterfly)

The Federative Republic of Amazonas is a federal parliamentary republic consisting of 20 provinces, two districts, two territories, and other minor islands classified into several sea districts. The Amazonian territory comprises almost to a uniform territory, separated by rivers, with the Southern regions being classified as the Amazonian cerrado, with most of the territory inside the Amazon Rainforest, and the island of Marajó in-between the provinces of Amapá and Pará.

The Amazonian territory is limited by Brazil by south and east; the Andes Republic by southwest, Granada by the northwest, the Caribbean and Atlantic Sea by the north.

History
The current territory was divided in treaties between Portugal and Spain. The present provinces of Amazonas, as the states of Brazil, trace their history to a combination of the captaincies established by Portugal following the Treaty of Tordesillas. The Treaty of Vienna seceded the Guyanas to Portugal.

With the independence of Amazonas (then Grão-Pará), there were just eight provinces, the province of Grão-Pará (which comprihises Pará, Amapá, Marajó, Carajás, Altamira, Santarém), the comarca of Amazonas (Amazonas, Juruá e Solimões, Alto Rio Negro, Federal District and Roraima), province of Guiana, the Município Neutro, province of Maranhão, province of Mato Grosso, territory of São João das Duas Barras, and the provinces of Ceará and Pernambuco.

After the coup d'état during the regency, which established a republic, the Amazonas declared war on Brazil to secede the former territories of Mato Grosso. Although Brazil recovered from the social and political instability, it has won the war against Amazonas, acquiring the provinces of Ceará and Pernambuco, forcing Amazonas to dissolve their Army for fifteen years, giving free access of Brazil to their rivers.

In the 1870's, Amazonas won a war against Granada and expanded their territory through the Amazon. In 1902, a northern Bolivian region declared independence and eventually was annexed by Amazonas in the Treaty of Rio de Janeiro, mediated by Brazil, and the territory turned into the province of Acre. Throughout the XX Century, the provinces were being separated from bigger territories.