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
Constituent Congress of Peru, 1822 already underway to support the Northern Liberator, Simón Bolívar, head of Gran Colombia, who had helped Peru to defeat the Spanish who were left throughout southern Peru, including what is now Bolivia. During the Guayaquil conference, Bolívar, San Martín had offered military aid to Peru, which was founded in July 1822 with the dispatch of Colombian troops under the command of Juan Paz del Castillo. In September of that year, Bolívar returned to offer another 4,000 troops, but the brand new Governing Board accepted the reception of only 4,000 rifles. Relations between Peru and Gran Colombia entered its most critical