title: 1841 in Bolivia
text: # 1841 in Bolivia
  
  Events in the year 1841 in Bolivia.
  
  ## Incumbents
  
  * President:
     * José Miguel de Velasco (until 10 June)
     * Sebastián Ágreda (provisional: 10 June 1841 – 9 July)
     * Mariano Enrique Calvo (acting: 9 July – 22 September)
     * Vacant (22–27 September)
     * José Ballivián (starting 27 September)
  
  ## Ongoing events
  
  * Peruvian-Bolivian War (1841–1842)
  
  ## Events
  
  ### June
  
  * 10 June – President José Miguel de Velasco is ousted in a coup d'état by Sebastián Ágreda.
  
  ### July
  
  * 9 July – Ágreda delegates command to Mariano Enrique Calvo, pending the return of Andrés de Santa Cruz.
  
  ### September
  
  * 22 September – Calvo is ousted in a coup d'état by José Ballivián. 18 November: Battle of Ingavi
  * 27 September – José Ballivián is sworn-in to the presidency after five days of uncertainty.
  
  ### October
  
  * 1 October – Peruvian-Bolivian War: Peruvian President Agustín Gamarra begin the march to Bolivia.
  * 2 October – Peruvian-Bolivian War: The Peruvian Army crosses the border onto Bolivian soil.
  * 15 October – Peruvian-Bolivian War: Peruvian forces occupy La Paz without a fight.
  * 29 October – Peruvian-Bolivian War – Battle of Mecapaca: Bolivian forces under Basilio Herrera attack those of Peru under Miguel de San Román but are repelled.
  
  ### November
  
  * 18 November – Peruvian-Bolivian War – Battle of Ingavi: The three competing Bolivian governments unite under Ballivián to defeat Gamarra.
  
  ## Deaths
  
  * 18 November – Agustín Gamarra, President of Peru (b. 1785)
  