The original name was Republic of Bolívar. Some days later, congressman Manuel Martín Cruz proposed: "If from Romulus, Rome, then from Bolívar, Bolivia" (). The name was approved by the Republic on 3 October 1825. In 2009, a new constitution changed the country's official name to "Plurinational State of Bolivia" to reflect the multi-ethnic nature of the country and the strengthened rights of Bolivia's indigenous peoples under the new constitution.