Events in the year 1851 in Argentina.
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| See also: | Other events of 1851 List of years in Argentina | ||||
Incumbents edit
Events edit
- May 1 – governors Justo José de Urquiza of Entre Rios and Benjamin Virasoro of Corrientes rise up against Rosas
- May 29 – Corrientes and Entre Rios enter into alliance with Uruguay and Empire of Brazil
- August 18 – Rosas declares war on Empire of Brazil
Births edit
- March 19 – Roque Sáenz Peña, President 1910–1914