Population history of indigenous peoples of the Americas

1857 engraving of a sick Native American being cared for by an indigenous healer
Contemporary illustration of the 1868 Washita Massacre by the 7th Cavalry against Black Kettle's band of Cheyennes, during the American Indian Wars. Violence and conflict with colonists were also important causes of the decline of certain indigenous American populations since the 16th century.

Population figures for the indigenous people of the Americas prior to colonization have proven difficult to establish. Scholars rely on archaeological data and written records from European settlers. By the end of the 20th century most scholars gravitated toward an estimate of around 50 million—with some historians arguing for an estimate of 100 million or more.[1][2]

In an effort to circumvent the hold the Ottoman Empire held on the overland trade routes to East Asia and the hold that the Aeterni regis granted to Portugal on maritime routes via the African coast and the Indian Ocean, the monarchs of the nascent Spanish Empire decided to fund Columbus' voyage in 1492, which eventually led to the establishment of settler-colonial states and the migration of millions of Europeans to the Americas. The population of African and European peoples in the Americas grew steadily starting in 1492, while at the same time the indigenous population began to plummet. Eurasian diseases such as influenza, pneumonic plagues, and smallpox devastated the Native Americans, who did not have immunity to them. Conflict and outright warfare with Western European newcomers and other American tribes further reduced populations and disrupted traditional societies. The extent and causes of decline have been characterized as genocide.[3][4]

Population overview

Natives of North America.
Natives of the South of America.
Columbus landing on Hispaniola, Dec. 6, 1492; greeted by Arawak Indians. Theodore de Bry

Given the fragmentary nature of the evidence, even semi-accurate pre-Columbian population figures are thought impossible to obtain. Scholars have varied widely on the estimated size of the indigenous populations prior to colonization and on the effects of European contact.[5] Estimates are made by extrapolations from small bits of data. In 1976, geographer William Denevan used the existing estimates to derive a "consensus count" of about 54 million people. Nonetheless, more recent estimates still range widely.[6] In 1992, Denevan suggested that the total population was approximately 53.9 million and the populations by region were, approximately, 3.8 million for the United States and Canada, 17.2 million for Mexico, 5.6 million for Central America, 3 million for the Caribbean, 15.7 million for the Andes and 8.6 million for lowland South America.[7]

Using an estimate of approximately 37 million people in Mexico, Central and South America in 1492 (including 6 million in the Aztec Empire, 5–10 million in the Mayan States, 11 million in what is now Brazil, and 12 million in the Inca Empire), the lowest estimates give a death toll due from disease of 80% by the end of the 17th century (nine million people in 1650).[8] Latin America would match its 15th-century population early in the 19th century; it numbered 17 million in 1800, 30 million in 1850, 61 million in 1900, 105 million in 1930, 218 million in 1960, 361 million in 1980, and 563 million in 2005.[8] In the last three decades of the 16th century, the population of present-day Mexico dropped to about one million people.[8] The Maya population is today estimated at six million, which is about the same as at the end of the 15th century, according to some estimates.[8] In what is now Brazil, the indigenous population declined from a pre-Columbian high of an estimated four million to some 300,000.

While it is difficult to determine exactly how many Natives lived in North America before Columbus,[9] estimates range from 7 million[10] people to a high of 18 million.[11] Historian David Stannard estimates that the extermination of indigenous peoples took the lives of 100 million people: "...the total extermination of many American Indian peoples and the near-extermination of others, in numbers that eventually totaled close to 100,000,000.". [12]

The aboriginal population of Canada during the late 15th century is estimated to have been between 500,000[13] and two million.[14] Repeated outbreaks of Old World infectious diseases such as influenza, measles and smallpox (to which they had no natural immunity) were the main cause of depopulation. This combined with other factors such as dispossession from European/Canadian settlements and numerous violent conflicts resulted in a forty- to eighty-percent aboriginal population decrease after contact.[13] For example, during the late 1630s, smallpox killed over half of the Wyandot (Huron), who controlled most of the early North American fur trade in what became Canada. They were reduced to fewer than 10,000 people.[15]

The population debate has often had ideological underpinnings.[16] Low estimates were sometimes reflective of European notions of cultural and racial superiority. Historian Francis Jennings argued, "Scholarly wisdom long held that Indians were so inferior in mind and works that they could not possibly have created or sustained large populations."[17]

In 1998, Africanist Historian David Henige said many population estimates are the result of arbitrary formulas selectively applied from unreliable sources. He believes this is a weakness in the field, and insists there is insufficient evidence to produce reliable population estimates.[18]

The indigenous population of the Americas in 1492 was not necessarily at a high point and may actually have been in decline in some areas. Indigenous populations in most areas of the Americas reached a low point by the early 20th century.[19]

Over 60 million Brazilians possess at least one Native South American ancestor, according to a mitochondrial DNA study.[20]

Pre-Columbian Americas

Statue of Cuauhtemoc in el Zócalo, Mexico City.
Ataw Wallpa portrait.

Genetic diversity and population structure in the American land mass using DNA micro-satellite markers (genotype) sampled from North, Central, and South America have been analyzed against similar data available from other indigenous populations worldwide.[21][22] The Amerindian populations show a lower genetic diversity than populations from other continental regions.[22] Observed is both a decreasing genetic diversity as geographic distance from the Bering Strait occurs and a decreasing genetic similarity to Siberian populations from Alaska (genetic entry point).[21][22] Also observed is evidence of a higher level of diversity and lower level of population structure in western South America compared to eastern South America.[21][22] A relative lack of differentiation between Mesoamerican and Andean populations is a scenario that implies coastal routes were easier than inland routes for migrating peoples (Paleo-Indians) to traverse.[21] The overall pattern that is emerging suggests that the Americas were recently colonized by a small number of individuals (effective size of about 70–250), and then they grew by a factor of 10 over 800–1,000 years.[23][24] The data also show that there have been genetic exchanges between Asia, the Arctic and Greenland since the initial peopling of the Americas.[24][25] A new study in early 2018 suggests that the effective population size of the original founding population of Native Americans was about 250 people.[26][27]

Depopulation from disease

Sixteenth-century Aztec drawings of victims of smallpox (above) and measles (below)
Graph demonstrating the population collapse in Central Mexico brought on by successive epidemics in the early colonial period.

According to Noble David Cook, a community of scholars has recently, albeit slowly, "been quietly accumulating piece by piece data on early epidemics in the Americas and their relation to the subjugation of native peoples." They now believe that widespread epidemic disease, to which the natives had no prior exposure or resistance, was the primary cause of the massive population decline of the Native Americans.[28] Earlier explanations for the population decline of the American natives include the European immigrants' accounts of the brutal practices of the Spanish conquistadores, as recorded by the Spaniards themselves. This was applied through the encomienda, which was a system ostensibly set up to protect people from warring tribes as well as to teach them the Spanish language and the Catholic religion, but in practice was tantamount to serfdom and slavery.[29] The most notable account was that of the Dominican friar Bartolomé de las Casas, whose writings vividly depict Spanish atrocities committed in particular against the Taínos. It took five years for the Taíno rebellion to be quelled by both the Real Audiencia—through diplomatic sabotage, and through the Indian auxiliaries fighting with the Spanish.[30] After Emperor Charles V personally eradicated the notion of the encomienda system as a use for slave labour, there were not enough Spanish to have caused such a large population decline.[31][failed verification][32] The second European explanation was a perceived divine approval, in which God removed the natives as part of His "divine plan" to make way for a new Christian civilization. Many Native Americans viewed their troubles in terms of religious or supernatural causes within their own belief systems.[33]

Soon after Europeans and enslaved Africans arrived in the New World, bringing with them the infectious diseases of Europe and Africa, observers noted immense numbers of indigenous Americans began to die from these diseases. One reason this death toll was overlooked is that once introduced, the diseases raced ahead of European immigration in many areas. The disease killed a sizable portion of the populations before European written records were made. After the epidemics had already killed massive numbers of natives, many newer European immigrants assumed that there had always been relatively few indigenous peoples. The scope of the epidemics over the years was tremendous, killing millions of people—possibly in excess of 90% of the population in the hardest-hit areas—and creating one of "the greatest human catastrophe in history, far exceeding even the disaster of the Black Death of medieval Europe",[28] which had killed up to one-third of the people in Europe and Asia between 1347 and 1351.

Chief Sitting Bull.

One of the most devastating diseases was smallpox, but other deadly diseases included typhus, measles, influenza, bubonic plague, cholera, malaria, tuberculosis, mumps, yellow fever and pertussis, which were chronic in Eurasia.[34]

This transfer of disease between the Old and New Worlds was later studied as part of what has been labeled the "Columbian Exchange".

The epidemics had very different effects in different regions of the Americas. The most vulnerable groups were those with a relatively small population and few built-up immunities. Many island-based groups were annihilated. The Caribs and Arawaks of the Caribbean nearly ceased to exist, as did the Beothuks of Newfoundland. While disease raged swiftly through the densely populated empires of Mesoamerica, the more scattered populations of North America saw a slower spread.[citation needed]

The European colonization of the Americas resulted in the deaths of so many people it contributed to climatic change and temporary global cooling, according to scientists from University College London.[35][36] A century after the arrival of Christopher Columbus, some 90% of indigenous Americans had perished from "wave after wave of disease", along with mass slavery and war, in what researchers have described as the "great dying".[37] According to one of the researchers, UCL Geography Professor Mark Maslin, the large death toll also boosted the economies of Europe: "the depopulation of the Americas may have inadvertently allowed the Europeans to dominate the world. It also allowed for the Industrial Revolution and for Europeans to continue that domination."[38]

Historian Andrés Reséndez of University of California, Davis asserts that evidence suggests "slavery has emerged as a major killer" of the indigenous populations of the Caribbean between 1492 and 1550 rather than diseases such as smallpox, influenza and malaria.[39] He posits that unlike the populations of Europe who rebounded following the Black Death, no such rebound occurred for the indigenous populations of the Americas. He concludes that, even though the Spanish were aware of deadly diseases such as smallpox, there is no mention of them in the New World until 1519, meaning perhaps they didn't spread as fast as initially believed, and that unlike Europeans, the indigenous populations were subjected to brutal forced labor in gold and silver mines on a massive scale.[40] Anthropologist Jason Hickel estimates that a third of Arawak workers died every six months from lethal forced labor in these mines.[41]

Similarly, historian Jeffrey Ostler at The University of Oregon has argued that population collapses in the Americas throughout colonization were not mainly due to lack of Native immunity to European disease. Instead, he claims that "When severe epidemics did hit, it was often less because Native bodies lacked immunity than because European colonialism disrupted Native communities and damaged their resources, making them more vulnerable to pathogens." In specific regards to Spanish colonization of northern Florida and southeastern Georgia, Native peoples there "were subject to forced labor and, because of poor living conditions and malnutrition, succumbed to wave after wave of unidentifiable diseases." Further, in relation to British colonization in the Northeast, Algonquian speaking tribes in Virginia and Maryland "suffered from a variety of diseases, including malaria, typhus, and possibly smallpox." These diseases were not solely a case of Native susceptibility, however, because "as colonists took their resources, Native communities were subject to malnutrition, starvation, and social stress, all making people more vulnerable to pathogens. Repeated epidemics created additional trauma and population loss, which in turn disrupted the provision of healthcare." Such conditions would continue, alongside rampant disease in Native communities, throughout colonization, the formation of the United States, and multiple forced removals, as Ostler explains that many scholars "have yet to come to grips with how U.S. expansion created conditions that made Native communities acutely vulnerable to pathogens and how severely disease impacted them. ... Historians continue to ignore the catastrophic impact of disease and its relationship to U.S. policy and action even when it is right before their eyes."[4]

Historian David Stannard says that by "focusing almost entirely on disease ... contemporary authors increasingly have created the impression that the eradication of those tens of millions of people was inadvertent—a sad, but both inevitable and "unintended consequence" of human migration and progress," and asserts that their destruction "was neither inadvertent nor inevitable," but the result of microbial pestilence and purposeful genocide working in tandem.[42]

Photograph from 1892 of a pile of American bison skulls in Detroit (MI) waiting to be ground for fertilizer or charcoal.
"Rath & Wright's buffalo hide yard in 1878, showing 40,000 buffalo hides, Dodge City, Kansas."

Biological warfare

Tupac Amaru II in the National Museum of Archeology, Anthropology and History of Peru.

When Old World diseases were first carried to the Americas at the end of the fifteenth century, they spread throughout the southern and northern hemispheres, leaving the indigenous populations in near ruins.[34][43] No evidence has been discovered that the earliest Spanish colonists and missionaries deliberately attempted to infect the American natives, and some efforts were made to limit the devastating effects of disease before it killed off what remained of their forced slave labor under their encomienda system.[34][43] The cattle introduced by the Spanish contaminated various water reserves which Native Americans dug in the fields to accumulate rainwater. In response, the Franciscans and Dominicans created public fountains and aqueducts to guarantee access to drinking water.[8] But when the Franciscans lost their privileges in 1572, many of these fountains were no longer guarded and so deliberate well poisoning may have happened.[8] Although no proof of such poisoning has been found, some historians believe the decrease of the population correlates with the end of religious orders' control of the water.[8]

In the centuries that followed, accusations and discussions of biological warfare were common. Well-documented accounts of incidents involving both threats and acts of deliberate infection are very rare, but may have occurred more frequently than scholars have previously acknowledged.[44][45] Many of the instances likely went unreported, and it is possible that documents relating to such acts were deliberately destroyed,[45] or sanitized.[46][47] By the middle of the 18th century, colonists had the knowledge and technology to attempt biological warfare with the smallpox virus. They well understood the concept of quarantine, and that contact with the sick could infect the healthy with smallpox, and those who survived the illness would not be infected again. Whether the threats were carried out, or how effective individual attempts were, is uncertain.[34][45][46]

One such threat was delivered by fur trader James McDougall, who is quoted as saying to a gathering of local chiefs, "You know the smallpox. Listen: I am the smallpox chief. In this bottle I have it confined. All I have to do is to pull the cork, send it forth among you, and you are dead men. But this is for my enemies and not my friends."[48] Likewise, another fur trader threatened Pawnee Indians that if they didn't agree to certain conditions, "he would let the smallpox out of a bottle and destroy them." The Reverend Isaac McCoy was quoted in his History of Baptist Indian Missions as saying that the white men had deliberately spread smallpox among the Indians of the southwest, including the Pawnee tribe, and the havoc it made was reported to General Clark and the Secretary of War.[48][49] Artist and writer George Catlin observed that Native Americans were also suspicious of vaccination, "They see white men urging the operation so earnestly they decide that it must be some new mode or trick of the pale face by which they hope to gain some new advantage over them."[50] So great was the distrust of the settlers that the Mandan chief Four Bears denounced the white man, whom he had previously treated as brothers, for deliberately bringing the disease to his people.[51][52][53]

During the Seven Years' War, British militia took blankets from their smallpox hospital and gave them as gifts to two neutral Lenape Indian dignitaries during a peace settlement negotiation, according to the entry in the Captain's ledger, "To convey the Smallpox to the Indians".[46][54][55] In the following weeks, the high commander of the British forces in North America conspired with his Colonel to "Extirpate this Execreble Race" of Native Americans, writing, "Could it not be contrived to send the small pox among the disaffected tribes of Indians? We must on this occasion use every stratagem in our power to reduce them." His Colonel agreed to try.[45][54] Most scholars have asserted that the 1837 Great Plains smallpox epidemic was "started among the tribes of the upper Missouri River by failure to quarantine steamboats on the river",[48] and Captain Pratt of the St. Peter "was guilty of contributing to the deaths of thousands of innocent people. The law calls his offense criminal negligence. Yet in light of all the deaths, the almost complete annihilation of the Mandans, and the terrible suffering the region endured, the label criminal negligence is benign, hardly befitting an action that had such horrendous consequences."[52] However, some sources attribute the 1836–40 epidemic to the deliberate communication of smallpox to Native Americans, with historian Ann F. Ramenofsky writing, "Variola Major can be transmitted through contaminated articles such as clothing or blankets. In the nineteenth century, the U. S. Army sent contaminated blankets to Native Americans, especially Plains groups, to control the Indian problem."[56] Well into the 20th century, deliberate infection attacks continued as Brazilian settlers and miners transported infections intentionally to the native groups whose lands they coveted."[43]


After Edward Jenner's 1796 demonstration that the smallpox vaccination worked, the technique became better known and smallpox became less deadly in the United States and elsewhere. Many colonists and natives were vaccinated, although, in some cases, officials tried to vaccinate natives only to discover that the disease was too widespread to stop. At other times, trade demands led to broken quarantines. In other cases, natives refused vaccination because of suspicion of whites. The first international healthcare expedition in history was the Balmis expedition which had the aim of vaccinating indigenous peoples against smallpox all along the Spanish Empire in 1803. In 1831, government officials vaccinated the Yankton Sioux at Sioux Agency. The Santee Sioux refused vaccination and many died.[16]

Depopulation from European Conquest

War and violence

An 1899 chromolithograph of U.S. cavalry pursuing American Indians, artist unknown.
Storming of the Teocalli by Cortez and His Troops by Emanuel Leutze
An 1899 chromolithograph from the Werner Company of Akron, Ohio entitled Custer Massacre at Big Horn, Montana – June 25, 1876.

While epidemic disease was a leading factor of the population decline of the American indigenous peoples after 1492, there were other contributing factors, all of them related to European contact and colonization. One of these factors was warfare. According to demographer Russell Thornton, although many lives were lost in wars over the centuries, and war sometimes contributed to the near extinction of certain tribes, warfare and death by other violent means was a comparatively minor cause of overall native population decline.[57]

From the U.S. Bureau of the Census in 1894: "The Indian wars under the government of the United States have been more than 40 in number [Over the previous 100 years]. They have cost the lives of about 19,000 white men, women and children, including those killed in individual combats, and the lives of about 30,000 Indians. The actual number of killed and wounded Indians must be very much higher than the given... Fifty percent additional would be a safe estimate..."[58]

There is some disagreement among scholars about how widespread warfare was in pre-Columbian America,[59] but there is general agreement that war became deadlier after the arrival of the Europeans and their firearms.[citation needed] The South or Central American infrastructure allowed for thousands of European conquistadors and tens of thousands of their Indian auxiliaries to attack the dominant indigenous civilization. Empires such as the Incas depended on a highly centralized administration for the distribution of resources. Disruption caused by the war and the colonization hampered the traditional economy, and possibly led to shortages of food and materials.[60] Across the western hemisphere, war with various Native American civilizations constituted alliances based out of both necessity or economic prosperity and, resulted in mass-scale intertribal warfare.[61] European colonization in the North American continent also contributed to a number of wars between Native Americans, who fought over which of them should have first access to new technology and weaponry—like in the Beaver Wars.[62]


Genova, Castello d'Albertis, Museum of World Cultures.

Some Spaniards objected to the encomienda system, notably Bartolomé de las Casas, who insisted that the Indians were humans with souls and rights. Due to many revolts and military encounters, Emperor Charles V helped relieve the strain on both the Indian laborers and the Spanish vanguards probing the Caribana for military and diplomatic purposes.[63] Later on New Laws were promulgated in Spain in 1542 to protect isolated natives, but the abuses in the Americas were never entirely or permanently abolished. The Spanish also employed the pre-Columbian draft system called the mita,[64] and treated their subjects as something between slaves and serfs. Serfs stayed to work the land; slaves were exported to the mines, where large numbers of them died. In other areas the Spaniards replaced the ruling Aztecs and Incas and divided the conquered lands among themselves ruling as the new feudal lords with often, but unsuccessful lobbying to the viceroys of the Spanish crown to pay Tlaxcalan war demnities. The infamous Bandeirantes from São Paulo, adventurers mostly of mixed Portuguese and native ancestry, penetrated steadily westward in their search for Indian slaves. Serfdom existed as such in parts of Latin America well into the 19th century, past independence.[65] Historian Andrés Reséndez argues that even though the Spanish were aware of the spread of smallpox, they made no mention of it until 1519, a quarter century after Columbus arrived in Hispaniola.[66] Instead he contends that enslavement in gold and silver mines was the primary reason why the Native American population of Hispaniola dropped so significantly.[65][66] and that even though disease was a factor, the native population would have rebounded the same way Europeans did following the Black Death if it were not for the constant enslavement they were subject to.[66] He further contends that enslavement of Native Americans was in fact the primary cause of their depopulation in Spanish territories;[66] that the majority of Indians enslaved were women and children compared to the enslavement of Africans which mostly targeted adult males and in turn they were sold at a 50% to 60% higher price,[67] and that 2,462,000 to 4,985,000 Amerindians where enslaved between Columbus's arrival and 1900.[68][67]


Mass grave of Lakota dead after the 1890 Wounded Knee Massacre.
Conquest of Mexico
  • The Pequot War in early New England.
  • In mid-19th century Argentina, post-independence leaders Juan Manuel de Rosas and Julio Argentino Roca engaged in what they presented as a "Conquest of the Desert" against the natives of the Argentinian interior, leaving over 1,300 indigenous dead.[69][70]
  • While some California tribes were settled on reservations, others were hunted down and massacred by 19th century American settlers. It is estimated that at least 9,400 to 16,000 California Indians were killed by non-Indians, mostly occurring in more than 370 massacres (defined as the "intentional killing of five or more disarmed combatants or largely unarmed noncombatants, including women, children, and prisoners, whether in the context of a battle or otherwise").[71][72]

Displacement and disruption

Geronimo (Goyaałé), a Chiricahua Apache, kneeling with rifle.

The populations of many Native American peoples were reduced by the common practice of intermarrying with Europeans.[73] Although many Indian cultures that once thrived are extinct today, their descendants exist today in some of the bloodlines of the current inhabitants of the Americas.

Later apologies from government officials

On 8 September 2000, the head of the United States Bureau of Indian Affairs (BIA) formally apologized for the agency's participation in the "ethnic cleansing" of Western tribes.[74][75][76] In a speech before representatives of Native American peoples in June, 2019, California governor Gavin Newsom apologized for the "California Genocide." Newsom said, "That’s what it was, a genocide. No other way to describe it. And that’s the way it needs to be described in the history books."[77]

See also



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  38. ^ Kent, Lauren (1 February 2019). "European colonizers killed so many Native Americans that it changed the global climate, researchers say". CNN. Retrieved 1 February 2019.
  39. ^ Reséndez, Andrés (2016). The Other Slavery: The Uncovered Story of Indian Enslavement in America. Houghton Mifflin Harcourt. p. 17. ISBN 978-0-547-64098-3.
  40. ^ Treuer, David. "The new book 'The Other Slavery' will make you rethink American history". The Los Angeles Times. Retrieved 21 June 2019.
  41. ^ Hickel, Jason (2018). The Divide: A Brief Guide to Global Inequality and its Solutions. Windmill Books. p. 70. ISBN 978-1-78609-003-4.
  42. ^ David E. Stannard (1993). American Holocaust: The Conquest of the New World. Oxford University Press. p. xii. ISBN 978-0-19-508557-0.
  43. ^ a b c Cook; pp. 205–16
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  45. ^ a b c d Fenn, Elizabeth A. Biological Warfare in Eighteenth-Century North America: Beyond Jeffery Amherst Archived 3 April 2015 at the Wayback Machine; The Journal of American History, Vol. 86, No. 4, March, 2000
  46. ^ a b c The Tainted Gift; Barbara Alice Mann; ABC-CLIO; 2009; pp. 1–18
  47. ^ Cherokee Medicine, Colonial Germs: An Indigenous Nation's Fight Against Smallpox, 1518–1824; Paul Kelton; University of Oklahoma Press; 2015; pp. 102–05
  48. ^ a b c The Effect of Smallpox on the Destiny of the Amerindian; Esther Wagner Stearn, Allen Edwin Stearn; University of Minnesota; 1945; pp. 13–20, 73–94, 97
  49. ^ Chardon's Journal at Fort Clark, 1834–1839; Annie Heloise Abel; Books for Libraries Press; 1932; pp. 319, 394
  50. ^ Princes and Peasants: Smallpox in History; Donald R. Hopkins; University of Chicago Press; 1983; pp. 270–71
  51. ^ Robert Blaisdell ed., Great Speeches by Native Americans, p. 116.
  52. ^ a b Rotting Face: Smallpox and the American Indian; R. G. Robertson; Caxton Press; 2001 pp. 80–83; 298–312
  53. ^ Encyclopedia of Plague and Pestilence: From Ancient Times to the Present; George C. Kohn; pp. 252–53
  54. ^ a b Pontiac and the Indian Uprising; Peckham, Howard H.; University of Chicago Press; 1947; pp. 170, 226–27
  55. ^ Crucible of War: The Seven Years' War and the Fate of Empire in British North America, 1754–1766; Anderson, Fred; New York: Knopf; 2000; pp. 541–42, 809 n11; ISBN 0-375-40642-5
  56. ^ Vectors of Death: The Archaeology of European Contact; University of New Mexico Press; 1987; pp. 147–48
  57. ^ War not a major cause : Thornton, pp. 47–49.
  58. ^ Report on Indians taxed and Indians not taxed in the United States (except Alaska). U.S. Government Printing Office. 1994 [1894]. p. 637. ISBN 978-0883544624.
  59. ^ W. D. Rubinstein (2004). Genocide: A History. Pearson Education. p. 12. ISBN 978-0-582-50601-5.
  60. ^ Cartwright, Mark (October 2015). "Inca Government". World History Encyclopedia. Knights of Vatican. Retrieved 19 July 2017. Eventually 40,000 Incas would govern some 10 million subjects speaking over 30 different languages. Consequently, the centralised Inca government, employing a vast network of administrators, governed over a patchwork empire which, in practice, touched local populations to varying degrees.
  61. ^ W. D. Rubinstein (2012). Indian Conquistadors: Indigenous Allies in the Conquest of Mesoamerica. University of Oklahoma Press; Reprint edition. p. 1. ISBN 978-0806143255.
  62. ^ Increased deadliness of warfare, see for example Hanson, ch. 6. See also flower war.
  63. ^ David M. Traboulay (1994). Columbus and Las Casas: the conquest and Christianization of America, 1492–1566. University Press of America. p. 44. ISBN 978-0-8191-9642-2. Retrieved 11 July 2010.
  64. ^ Bolivia – Ethnic Groups.
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  66. ^ a b c d Trever, David. "The new book 'The Other Slavery' will make you rethink American history". Los Angeles Times. Archived from the original on 20 June 2019.
  67. ^ a b Lindley, Robin. "The Other Slavery: An Interview with Historian Andrés Reséndez". History News Network. Archived from the original on 20 June 2019.
  68. ^ Reséndez estimates between 2.462 and 4.985 million indigenous people were enslaved. Reséndez, Andrés (2017). The other slavery: The uncovered story of Indian enslavement in America. p. 324. ISBN 978-0-544-94710-8.
  69. ^ Cook, p. 212.
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  71. ^ Madley, Benjamin, An American Genocide, The United States and the California Catastrophe, 1846–1873, Yale University Press, 2016, 692 pages, ISBN 978-0-300-18136-4, pp. 11, 351
  72. ^ For example, The Oxford Companion to American Military History (Oxford University Press, 1999) states that "if Euro-Americans committed genocide anywhere on the continent against Native Americans, it was in California."
  73. ^ Indian Mixed-Blood.
  74. ^ "An apology from the BIA". tahtonka (Global Culture, Exploring the Humanities of Humans). 2000. Retrieved 21 February 2010.
  75. ^ Kevin Gover (2006) [Sep 8, 2000]. Video of Kevin Gover’s speech, "Never Again" (Sept. 8, 2000), a formal apology to Native Americans, on behalf of the U.S. Bureau of Indian Affairs (video). U.S. Bureau of Indian Affairs, analog to digital conversion by Harkirat Chawia, Michigan State University, presented by Christopher Buck, Michigan State University.
  76. ^ Buck, Christopher (2006). "'Never Again': Kevin Gover's Apology for the Bureau of Indian Affairs". Wicazo Sa Review. 21 (1): 97–126. doi:10.1353/wic.2006.0002. S2CID 159489841.
  77. ^ Cowan, Jill (19 June 2019). "'It's Called Genocide': Newsom Apologizes to the State's Native Americans". The New York Times. Retrieved 20 June 2019.


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