Argentina By Dax Marvin Jan 2, 1776 The land that become argentina becomes part of the colony of Viceroyalty of the Rio de la Plata Period: Jun 25, 1806 to Jun 27, 1807 The britsh invaded but they were held off at Buenos Aires May 18, 1810 The May Revolution Began in Buenos Aires Period: May 18, 1810 to Apr 5, 1818 Argentine War of Independence begins Period: 1814 to 1876 Argentina is in a constant state of civil war. 1853 Argentina becomes a Republic 1880 Buenos Aires tries to secede from the republic. Troops take over and federalize the city making it the capital city of the government. 1943 The military takes over the government. One of the leaders is Juan Peron. 1976 The military takes over the government again. The Dirty War begins where any suspected opponents to the government are jailed or killed. Period: Apr 2, 1982 to Jun 14, 1982 The folkland war