Viceroyalty of Peru on July 21, 1821. The independence of Peru was proclaimed on July 28, 1821. Viceroy José de la Serna e Hinojosa, still in command of a sizable military force, retired to Jauja, and later to Cusco. On July 26, 1822, San Martín and Simón Bolívar met in Guayaquil to define a strategy for the liberation of the rest of Peru. The meeting was secret, and exactly what occurred is not known. However, afterwards San Martín returned to Argentina while Bolívar prepared to launch an offensive against the remaining royalist forces in Peru and Upper Peru (Bolivia). In September 1823 Bolívar
History of Peru since most of the presidents that ruled the country were from the social elite. During Augusto B. Leguía's periods in government [1908–1912 and 1919–1930, the latter known as the "Oncenio" (the "Eleventh")], the entrance of American capital became general and the bourgeoisie was favored. This policy, along with increased dependence on foreign investment, focused opposition from the most progressive sectors of Peruvian society against the landowner oligarchy. There was a final peace treaty in 1929, signed between Peru and Chile and called the Treaty of Lima by which Tacna returned to Peru and Peru yielded permanently the formerly rich provinces