Bolivia Sources Polity Style: 1825-2023 Military Authority: 1825-1826 Heads of State: 1826-1841 Heads of State: 1841-1920 Heads of State: 1920-1964 Heads of State: 1964-2009 Heads of State: 2009-2023 Last updated on: 29 Nov 2023; URL: www.archontology.org/nations/bolivia/index.php