Amazonas, largest estado (state) of Brazil, situated in the northwestern part of the country. It is bounded to the northwest by Colombia, to the north by Venezuela and the Brazilian state of Roraima, to the east and southeast by the Brazilian states of Pará and Mato Grosso, to the south by the Brazilian state of Rondônia, to the southwest by the Brazilian state of Acre, and to the west by Peru.
Amazonas is named after the Amazon River, and was formerly part of the Spanish Viceroyalty of Peru, a region called Spanish Guyana. It was settled by the Portuguese in the early 18th century and incorporated into the Portuguese empire after the Treaty of Madrid in 1750. It became a state of the Brazilian Republic in 1889.
Amazon River the greatest river of South America and the largest drainage system in the world in terms of the…
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