peru By bryce.. Feb 27, 1533 Francisco Pizarro defeated Incas Jan 1, 1535 Lima, Peru is founded Jan 1, 1800 Peru's population in sharp decline Jul 28, 1821 Peru Gained independence in 1821 Jan 1, 1834 Civil War breaks out in Peru Jan 1, 1844 Ramón Castilla first president elected by popular votes Jan 1, 1860 Peru enacts a new constitution Jan 1, 1876 Peru population approaches three million Jan 1, 1940 Peru's population now exceeds seven million Jan 1, 2016 Ollanta Humala is the current president of Peru