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April – Conquest of the Desert: Julio Argentino Roca begins his second sweep of the land up to the Rio Negro, aiming to "extinguish, subdue or expel" the Indians who inhabit the region.
The first permanent settlement on the territory of present-day Uruguay was founded by the Spanish in 1624 at Soriano on the Río Negro.
Other localized, small populations occur notably on four tributary rivers: the central Tapajós River, lower Madeira River, lower Rio Negro, and lower Ucayali River; also on the Amazon River, one region downstream of the Tapajós-Amazon River confluence.
It is found widely in woodland, savanna and scrub in northern South America in Colombia, Venezuela, the Guianas, the ABC islands in the Netherlands Antilles, and northern Brazil (mainly the Rio Negro/Branco region) with a disjunct population in south-western Pará.
An entire industry is in place in Barcelos on the banks of Brazil's Rio Negro in which the local population catches fish for the aquarium trade.
Claudio Basso is an Argentine singer born in Cipolletti, Río Negro on August 6, 1977.
The specific name was bestowed in 1834 by Darwin's contemporary and rival Alcide d'Orbigny who first described the bird to Europeans, from a specimen from the lower Río Negro south of Buenos Aires, Argentina.
El Bolsón area's first non-indigenous inhabitants were German immigrants that arrived to the valley from Chile as an offshoot of the colonisation of Llanquihue.
The Hydroelectric Complex which holds El Chocón and Arroyito Hydroelectric Power Plants, is located in the region known as Comahue, which is formed by the Argentine provinces of Río Negro and Neuquén and the southern area of the Buenos Aires and La Pampa provinces.
González-Sponga found the two first species inside bark under litter, G. persephone was also found inside soil, in an inundation-forest of black-water (igapó) at Tarumã-Mirim, near the mouth of Rio Negro, 20km upstream from Manaus.
The Ireng River's waters are dark, bearing a striking resemblance to that of Rio Negro near Manaus, in Brazilian state of Amazonas.
Javier Andrés Correa (born July 17, 1976 in San Carlos de Bariloche, Río Negro) is an Argentine sprint canoer who competed from the late 1990s to the mid-2000s (decade).
Julio Eduardo Mázzaro (born 30 January 1979 in Villa Regina, Río Negro) is an Argentine professional basketball player.
It has two subspecies: The widespread nominate has a white rump and is found south of the Amazon River and west of the Madeira River, while ochroptera has a yellowish rump and is found between the Amazon River and the lower Rio Negro.
On 2 September 1996, Ombudsman Jorge Mario García Laguardia issued a historic resolution in which he denounced the massacre of Plan de Sánchez (and two others that took place in Rabinal the same year: Chichupac and Río Negro) as crimes against humanity, laid the blame for them firmly at the feet of the government and the military, and said that they had been carried out as part of a premeditated state policy.
José Solano set up his exploration base in that place, in the margins of the Rio Negro, and there he settled with the few men that had survived the ascent along the Orinoco River, since most, including the famous Swedish botanist Pehr Löfling that accompanied the expedition, they had succumbed prey of the tropical diseases, especially the yellow fever.
Roth extended his range of paleontological expeditions to Patagonia, including the areas along the Rio Negro, Limay River and Chubut River, partly together with F. Machon, another researcher from Switzerland from 1885 to 1891.
This corridor is about 700 km wide, and includes the confluence areas downstream of the major rivers: Rio Negro, Madeira, Tapajós, Xingu, and the outlet section of the Tocantins River in the southeast Basin's neighbouring river system, Araguaia-Tocantins.
According to a family post at ancestry.com, he died on 5 September 1970 in San Carlos de Bariloche, Río Negro, Argentina.
The main range of the White-winged Potoo is the central Amazon Basin at the confluence of four rivers, from the Rio Negro on the north, to the Madeira River on the south, in eastern regions of Brazil's Amazonas state.
Zebra acara (Nannacara adoketa) is a species of cichlid from Rio Uaupes and Rio Preto, two side rivers of Rio Negro in Brazil.