The 1820 collapse of central authority (the Anarchy of 1820) and provincial realignments (1820–1821)

1. Congress of Tucumán disbands amid provincial pressure

   Jan 1, 1820Labels: Congress of

   • Britannica

2. Army of the North revolts at Arequito

   Jan 8, 1820Labels: Army of

   • Arequito Revolt

3. Federalists defeat the Directory at Cepeda

   Feb 1, 1820Labels: Estanislao L, Francisco Ram

   • Britannica
   • Cepeda 1820

4. Supreme Director José Rondeau resigns

   Feb 11, 1820Labels: Jos Rondeau

   • Rondeau bio

5. Buenos Aires holds open cabildo and forms Junta

   Feb 16, 1820Labels: Buenos Aires

   • Todo Argentina
   • Pilar ES

6. Manuel de Sarratea becomes governor of Buenos Aires

   Feb 18, 1820Labels: Manuel de

   • Sarratea bio
   • Todo Argentina

7. Treaty of Pilar recognizes provincial autonomy

   Feb 23, 1820Labels: Treaty of

   • Treaty Pilar
   • Pilar ES

8. Juan Bautista Bustos becomes governor of Córdoba

   Mar 24, 1820Labels: Juan Bautista

   • Bustos bio
   • Museo HN

9. Santiago del Estero declares autonomy from Tucumán

   Apr 27, 1820Labels: Santiago del

   • Vinar pact

10. Francisco Ramírez founds the Republic of Entre Ríos

    Sep 29, 1820Labels: Francisco Ram, Republic of

    • Entre R os
    • Entre R os

11. Treaty of Benegas stabilizes Buenos Aires–Santa Fe relations

    Nov 24, 1820Labels: Treaty of

    • Benegas treaty

12. Treaty of Vinará ends Tucumán–Santiago conflict

    Jun 5, 1821Labels: Treaty of

    • Vinar pact
    • Santiago Cultura