On July 28, 1821
On Saturday July 28, 1821, in a very solemn public ceremony, José de San Martín, enunciated the famous Independence of Peru proclamation. First he said it in the Plaza Mayor of Lima, then in the plaza of La Merced, and then in front of the Convent of the Descalzos.The liberator with a Peruvian flag in his hand exclaimed:
SINCE THIS MOMENT, PERU IS FREE AND INDEPENDENT BY THE GENERAL WILL OF THE PEOPLES AND BY THE JUSTICE OF THEIR CAUSE THAT GOD DEFENDS. LONG LIVE THE COUNTRY! LONG LIVE FREEDOM! LONG LIVE INDEPENDENCE!
Read more here