Juan Lavalle Deposes Manuel Dorrego

Date: December 1, 1828 • Location: Madrid, Spain

This milestone marked the outbreak and beginning of this historic period, which spanned 1828–1828.

Returning to Buenos Aires with troops who fought in the Cisplatine War, Juan Lavalle (pictured) deposed provincial governor Manuel Dorrego, reigniting the Argentine Civil Wars.

The Cisplatine War was an armed conflict fought in the 1820s between the Empire of Brazil and the United Provinces of the Río de la Plata over control of the Banda Oriental following its annexation by Brazil as the Cisplatina province. It was fought in the aftermath of the United Provinces' and Brazil's independence from Spain and Portugal, respectively, and resulted in the independence of Cisplatina as the Oriental State of Uruguay.