Bolivia

The territory of present-day Bolivia has been inhabited for several thousand years and was home to some of the most sophisticated pre-Columbian societies of South America. The Tiwanaku polity, centered near the southern shore of Lake Titicaca, flourished from roughly 500 to 1000 CE and exercised wide cultural and economic influence across the Andean altiplano before its decline. In the wake of Tiwanaku's collapse, Aymara-speaking lordships such as the Lupaca and Colla rose to prominence, and from the mid-fifteenth century the region was incorporated into the Inca Empire under Pachacuti and his successors, who organised it as part of the southeastern quarter known as Collasuyu.

Spanish forces led by Francisco Pizarro overthrew the Inca state in the 1530s, and the highlands of what is now Bolivia were soon absorbed into the Viceroyalty of Peru as the Audiencia of Charcas, also called Upper Peru. The discovery of immense silver deposits at Potosi in 1545 made the territory one of the most lucrative possessions of the Spanish crown and fuelled the global silver economy for two centuries, sustained by the forced indigenous labour system known as the mita. In 1776 the audiencia was transferred to the newly created Viceroyalty of the Rio de la Plata, a reshuffling that would shape the boundaries of later independence struggles.

The wars of Spanish American independence began in Upper Peru with the uprisings of Chuquisaca and La Paz in 1809, but liberation came only after the campaigns of Simon Bolivar and Antonio Jose de Sucre. The Republic of Bolivar, soon renamed Bolivia in honour of its liberator, declared independence on 6 August 1825, with Sucre as its first president. The young republic proved politically unstable, cycling through numerous constitutions and caudillos, and it suffered substantial territorial losses over the following century, most notably its Pacific coastline to Chile in the War of the Pacific (1879 to 1884) and the Chaco region to Paraguay in the Chaco War (1932 to 1935).

The trauma of the Chaco War helped catalyse the National Revolution of 1952, led by the Movimiento Nacionalista Revolucionario under Victor Paz Estenssoro, which introduced universal suffrage, sweeping agrarian reform, and the nationalisation of the tin mines. This reformist period was followed from 1964 by a long sequence of military governments, including the regimes of Rene Barrientos, Hugo Banzer, and Luis Garcia Meza, punctuated by brief civilian interludes. A sustained return to constitutional rule came in 1982 with the presidency of Hernan Siles Zuazo, after which competitive elections became the norm.

The post-Cold War decades saw market liberalisation under successive governments, mounting social conflict over coca eradication and natural gas policy, and the so-called Gas War of 2003 that toppled President Gonzalo Sanchez de Lozada. In 2005 Evo Morales of the Movimiento al Socialismo became the country's first president of indigenous origin, and a new constitution adopted in 2009 refounded the state as the Plurinational State of Bolivia, recognising the autonomy of indigenous nations and reorganising the relationship between central and departmental authorities. After a contested 2019 election and a transitional government under Jeanine Anez, Luis Arce of the MAS won the 2020 vote, and was succeeded following the 2025 elections by Rodrigo Paz. Bolivia today is a unitary plurinational presidential republic, organised into nine departments and operating under the 2009 constitution.