Province of Buenos Aires in the context of Greater Buenos Aires

⭐ Core Definition: Province of Buenos Aires

Buenos Aires, officially the Buenos Aires Province, is the largest and most populous Argentine province. It takes its name from the city of Buenos Aires, the capital of the country, which used to be part of the province and the province's capital until it was federalized in 1880. Since then, in spite of bearing the same name, the province does not include Buenos Aires city, though it does include all other parts of the Greater Buenos Aires metropolitan region, which include approximately three-fourths of the conurbation's population. The capital of the province is the city of La Plata, founded in 1882.

It is bordered by the provinces of Entre Ríos to the northeast, Santa Fe to the north, Córdoba to the northwest, La Pampa to the west, Río Negro to the south and west and the Autonomous City of Buenos Aires to the northeast. Uruguay is just across the Rio de la Plata to the northeast, and both are on the coast of the Atlantic Ocean to the east. Almost the entire province is part of the Pampas geographical region, with the extreme south often considered part of the Patagonia region.

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⭐ Core Definition: Province of Buenos Aires
Province of Buenos Aires in the context of Argentina–Uruguay border
Province of Buenos Aires in the context of Bolivian annexation of northern Argentina

Province of Buenos Aires in the context of Argentina–Uruguay border

The Argentina–Uruguay border is a line of 579 km marked by the Uruguay River, and is the border between Argentina and Uruguay. It starts in a triple border Argentina-Uruguay-Brazil, at the mouth of the Quaraí River in the Uruguay. The course follows the Uruguay river, passing west of the Uruguayan departments of Artigas, Salto, Paysandu, Rio Negro, Soriano and Colonia and the Argentine provinces of Corrientes, Entre Rios and Buenos Aires, until the confluence of the Uruguay and the Paraná rivers into the Rio de la Plata.

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Province of Buenos Aires in the context of Bolivian annexation of northern Argentina

The Tarija War (Spanish: Guerra por Tarija), also known as the War between Argentina and the Peru–Bolivian Confederation (Spanish: Guerra entre Argentina y la Confederación Perú-Boliviana), was an armed conflict that occurred between 1837 and 1839. Because it happened while the Peru–Bolivian Confederation was engaged in a parallel war against the Republic of Chile during the so-called War of the Confederation, both conflicts are often confused. The Tarija War began on May 19, 1837, when Juan Manuel de Rosas, who was in charge of managing foreign relations for the Argentine Confederation and was governor of the Province of Buenos Aires, declared war directly on President Andres de Santa Cruz because of the Tarija Question and Confederation's support for the Unitarian Party.

The operations began in August 1837, when Bolivian Confederate troops invaded most of the Province of Jujuy, the Puna de Jujuy, and the north of the Province of Salta. The war continued with a series of combats and skirmishes between both forces, all of them without conclusive results. In May and June 1838, the Confederate army defeated Rosas's troops in a series of engagements, the most important of which was the Battle of Montenegro, which in practice led to Argentina's withdrawal from the war, which from then on had a defensive posture being maintained, but the state of war continued until the victory of the Chilean-Peruvian restorative army at the Battle of Yungay, which put an end to the Peru-Bolivian Confederation.

View the full Wikipedia page for Bolivian annexation of northern Argentina

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