Manaus (Portuguese pronunciation: [mɐˈnaws] or [mɐˈnawʃ]), or Manáos before 1939, or (formerly) Lugar de Barra do Rio Negro, is the capital city of the state of Amazonas in northern Brazil. It is situated at the confluence of the Negro and Solimões rivers. With a population of two million, it is the most populous city of Amazonas.
The city was founded in 1693-94 as the Fort of São José do Rio Negro. It was elevated to a town in 1832 with the name of "Manaus", an altered spelling of the indigenous Manaós peoples, and legally transformed into a city on October 24, 1848, with the name of Cidade da Barra do Rio Negro, Portuguese for "The City of the Margins of Black River". On September 4, 1856 it returned to its original name.