Republic / Plurinational State of Bolivia
Who & why: Simón Bolívar declines the presidency of the new republic, and Antonio José de Sucre becomes its first president in 1825; the country is named “Bolivia” directly after Bolívar, one of very few nations in the world named after a real person. The War of the Pacific (1879–84) against Chile, fought alongside allied Peru, ends in defeat: Bolivia loses its entire Pacific coastline and becomes landlocked, a defining and still keenly felt national loss. The country's official name changes to the “Plurinational State of Bolivia” in 2009 under a new constitution, without altering the flag itself.
What it represents: the horizontal red-yellow-green triband, promulgated on 31 October 1851 under President Manuel Isidoro Belzu. A decree of 14 July 1888 confirmed it and described the state, civil and military flags (Wikipedia calls the 1888 decree the first to say what the colors represent), and Supreme Decree No. 27630 of 19 July 2004 set the proportions at 15:22 (7.5 by 11 squares), fixed the colours and separated the civil flag from the state flag with the coat of arms. A decree of 5 August 2009 and the 2009 Constitution made the wiphala a national symbol alongside the tricolor. Early flags of 1825 drew on Colombia's and Bolívar's colours.
Wikipedia: 31 October 1851 tricolor adopted under Belzu; 1888 decree on the colors' meaning; 19 July 2004 Decree 27630 proportions 15:22; 5 August 2009 Decree 241 and wiphala. FOTW: late 1851 decree under Belzu; 14 July 1888 decree; 2004 decree with 7.5:11 ratio; 2009 constitution.
- Flag of Bolivia — Wikipedia compiled
- Bolivia — Flags of the World (CRW Flags) compiled
Not established: The proportions are from 2004, not 1888 as the page said.