Flags of Peru

Republic of Peru (modern)

Who & why: the republic's political history includes real turbulence — a long 19th- and 20th-century run of military governments, coups, and short-lived constitutions, along with the War of the Pacific (1879–84), in which Peru, allied with Bolivia, lost southern territory to Chile. Democratic civilian rule has been the norm since 2001. Through all of it, the flag itself has been essentially unchanged since Simón Bolívar fixed its current design in 1825.

What it represents: a vertical red-white-red triband adopted with the national coat of arms by law on 25 February 1825 under Congress in Bolívar's administration. Decree No. 1323 of 31 March 1950 removed the arms from the civil flag, so the plain triband is the civil flag and ensign and the version with arms is the state and war flag; the Constitution (Article 49) describes three vertical stripes in red, white and red.

War of independence

Who & why: José de San Martín, arriving from the south after campaigns in Argentina and Chile, proclaims Peruvian independence in Lima on 28 July 1821. Spanish royalist forces continue to hold much of the highlands for three more years, until Simón Bolívar and Antonio José de Sucre's decisive victory at the Battle of Ayacucho on 9 December 1824 effectively ends Spanish colonial rule across South America.

What it represents: Wikipedia gives San Martín's flag decreed on 21 October 1820 as diagonally quartered white and red with a laurel crown and sun, replaced in March 1822 by a horizontal white band between two red ones with a golden sun, then on 31 May 1822 by a vertical triband with a golden sun; Congress adopted the red-white-red design with the new arms on 25 February 1825. Flags of the World confirms the October 1820 decree but dates the change to a horizontal form to 1823. Neither source mentions a flag specific to 1821, and the vertical red-white-red drawn here matches only Wikipedia's flag of May 1822.

Viceroyalty of Peru (Spanish colonial)

Who & why: established in 1542, the viceroyalty makes Lima the seat of Spain's major South American administration for nearly three centuries, overseeing at its peak most of Spanish-held South America before the 18th-century creation of the Viceroyalty of New Granada and the Viceroyalty of Río de la Plata carves off large portions of that territory. Potosí's silver mines, administered from Lima until 1776, fund much of the Spanish empire's wealth.

What it represents: no distinct Peruvian flag is documented under colonial rule in the sources read; Wikipedia says the colonial-era Spanish flag flew over Peru and, citing historian Jorge Fernández Stoll, that the old viceroyalty flag was the red and white cross of Burgundy (one historian's argument), and Flags of the World and the U.S. National Park Service describe the Cross of Burgundy as Spain's ensign and military flag over the New World. The schematic banner drawn here matches none of these and is not a documented design; the sources give no dates for the viceroyalty.

Spanish conquest period

Who & why: Francisco Pizarro lands on the Peruvian coast in 1532, capturing and executing the Sapa Inca Atahualpa at Cajamarca after collecting an enormous ransom in gold and silver. By 1533 Pizarro's forces take Cusco, ending independent Inca rule; a full viceregal administration is not formally organized until 1542, so this decade is a transitional conquest period under provisional Spanish military and colonial authority.

What it represents: no distinct flag was created for this transitional decade; Pizarro's expedition and the early conquest administration operated under the same Spanish royal banner later flown over the formal viceroyalty, shown here identically for that reason. Neither Wikipedia nor FOTW gives dates or flags for the conquest decade.

Inca Empire (Tawantinsuyu)

Who & why: the largest pre-Columbian state in the Americas, centered on Cusco, expands across the Andes from the 1200s–1400s to its greatest extent under Huayna Capac in the early 1500s, stretching along much of the Pacific coast and highlands of South America. A succession crisis and civil war between his sons Atahualpa and Huascar weaken the empire just before Pizarro's arrival in 1532.

What it represents: no securely documented flag survives from the Inca state. The colorful "rainbow flag" popularly associated with Cusco today is a 20th-century invention, not a genuine Inca-era banner, and is not shown here. Some reconstructions depict a stylized sun disc, tied to Inti worship at the heart of Inca religion, but this remains an informed, non-official device rather than a documented flag — shown here honestly blank instead.

Caral-Supe (Norte Chico) civilization

Who & why: Caral, in the Supe Valley on Peru's arid north-central coast, is the oldest known civilization in the Americas, with monumental pyramid-and-plaza construction beginning around 3000 BCE — built without pottery, without evidence of walls or warfare, and, remarkably, apparently without contact with any other early civilization elsewhere in the world. The site's building phase declines by around 1800 BCE, and roughly twenty-five centuries then separate that decline from the Inca Empire's own rise in the 1200s CE, a vast span in which successive highland and coastal Andean cultures — Chavín, Moche, Nazca, Wari, Tiwanaku, and others — each rise and fall in turn, largely outside this page's country-level scope.

What it represents: no flag, symbol, or even a single ruler's name survives from Caral; its language itself remains unknown. Shown here honestly blank rather than invented.

World context: Caral's monumental building phase runs alongside Egypt's Old Kingdom pyramid age (the Great Pyramid of Giza, completed c. 2560 BCE), the early city-states of Sumer in Mesopotamia, and the mature Indus Valley civilization at Mohenjo-daro and Harappa — making Caral, by current archaeological consensus, one of only a handful of places on Earth where complex urban civilization arose independently, with no known contact with any of these other ancient centers.