Nordeste (Socio-Geographic Division)
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Nordeste (A Região geoeconômica do Nordeste The Socio-Geographic Division of the Northeast) is the oldest populated and currently the second most populous area of Brazil (42,822,100 in 1990). It's area is approximately 1,542,271 km², made up of the official region of the Northeast Region, minus the western half of Maranhão, but including the north of Minas Gerais - the Jequitinhonha Valley.
A major part of its territory is extensive planalto, old and flattened by erosion. Due to different physical characteristics, the region can be divided into four sub-regions: meio norte, zona da mata, agreste and sertão.
