1806 Popham expedition occupied Buenos Aires. Santiago Liniers forces British to surrender
1807 Second British expedition under General John Whitelocke occupies Montevideo (February-July) and attacks B.A. (June-July) but Liniers forces British to capitulate
1810 May 25, Mariano Moreno and provisional junta reject Spanish authority. Tries to gain control of Montevideo and Asunción
1810-1811 Delegates from interior provinces gradually join the provisional junta in B.A. Moreno resigns, Conservative triumvirate replaces junta (1811)
1812 Manuel Belgrano, in charge of porteño forces in northwest, checks royalists at Tucumán and Salta but fails to take Upper Peru. A second triumvirate organized at B.A.
1814 Assembly of provincial representatives at B.A. make basic social reforms 1814. José de San Martín assumes command of army of north
1816 Juan Martín de Pueyrredón named Supreme Director after independence declared
1819 Congress of Tucumán, having moved to B.A., drafts centralist constitution which is overwhelmingly rejected by autonomist sentiment in the provinces
1820 Collapse of Centralist authority at B.A.
1821-1824 Governorship of Martín Rodríguez at B.A.; minister of government is Bernardino Rivadavia
1821 Brazil annexes Uruguay
1825-1828 Buenos-Aires supports revolt in Uruguay and declares war on Brazil
1826 Congress of provincial representatives meeting in B.A. draws up another centralist constitution and elects Rivadavia as president
1827 Constitution is rejected by provinces and Rivadavia resigns
1828-1829 Civil War, Juan Manuel Rosas emerges as strongman
1831 Pact of the Littoral, signed by provinces of B.A., Entre Rios, and Santa Fé (subsequently joined by Corrientes), provides limited concept of national unity
1835 Rosas is elected governor with supreme and absolute powers
1837-1838 Rosas breaks relations with and declares war on Bolivian-Peruvian
Confederation.
Continued centralist-autonomist conflict in interior
1838-1851 Rosas enters the civil war in Uruguay and besieges Montevideo
1838-1840 Following disputes over treatment of French subjects, France established blockade of B.A. and extends military assistance to anti-Rosas forces in Uruguay and Argentina
1839-1840 Intensified civil conflict within Argentina. Severe repressions in B.A.
1845-1848 B.A. blockaded by France and England
1851 Justo Jose de Urquiza, governor of Entre Rios, in alliance with Brazilian and Uruguayan forces. Leads revolt against Rosas, wins at Caseros (1852)
1852-1861 Intermittent civil war between B.A. and the other provinces
1854-1860 Urquiza president of Confederation
1862-1868 Bartolome Mitre president
1865-1870 War of the Triple Alliance
1868-1874 Domingo F. Sarmiento, president.
1874-1880 Nicolás Avellaneda, Mitre revolt (1874) repressed
1880-1886 Julio Roca president. Consolidation of the National Autonomist or Conservative party
1886-1892 Miguel Juárez Celman
1892-1898 Luis Saeñz Pena and Jose F. Uriburu, 1893-1895. Revolt of the Radical party ; Socialist party founded
1898-1904 Julio Roca
1904-1910 Manuel Quintana & José Figueroa Alcorta
1910-1916 Roque Saénz Peña and Victorino de la Plaza, Saenz Peña Law (1912)
1916-1922 Hipólito Yrigoyen, first Radical Party member to be elected president.
1922-1928 Marelo T. de Alvear (conservative Radical party; 1924)
l928-1930 Yirgoyen; deposed in 1930
1930-1932 José F. Uriburu, general, as dictator
1932-1938 Agustín P. Justo (anti-Yrigoyen Radical)
1938-1940 Roberto M. Ortiz, ill in 1940
1940-1943 Ramon S. Castillo as acting president
1943 Generals Rawson and Ramírez overthrow government
1944 Juan Domingo Perón as V-P
1945 Perón imprisoned and freed
1946-1952 Administration of Perón
1952-1955 Second administration of Perón; Evita dies in 1952
1955 Military overthrows Perón.
Provisional government under General Lonardi
1955-1958 Gen. Pedro E. Aramburu
1958-1962 Arturo Frondizi
1962-1963 Administration of José M. Guido
1963-1966 Arturo Illia
1966 Military coup by General Onganía; Lanusse as president
1970 General Roberto Levingston
Perón returns to Argentina
1971 Alejandro Lanusse
1973 Héctor Cámpora, May 27-July 13
Juan Domingo Perón, Oct 12- July 1, 1974
1974 Maria Estela (Isabel) Martínez Perón
1976 Jorge Rafael Videla
1981 Roberto Viola, March 29-Dec 22
Leopoldo Fortunato Galtieri
1982 Malvinas/Falkland Islands War
Reynaldo Benito Antonio Bignone
1983-1989 Raul Alfonsín
1989-1999 Carlos Menem
December 10, 1999-December 21, 2001 Fernando de la Rua
December 21 and 22, 2001 Federico Ramón Puerta
December 23-30, 2001 Adolfo Rodríguez Saá Páez MonteroDecember 31, 2000-January 1, 2001 Eduardo Camaño
January 2, 2001-May 25, 2002 Dr. Eduardo Duhalde
May 25, 2003- Néstor Kirchner