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The native populations of Portuguese America were essential for the implementation of the Portuguese colonial project. Their labor was indispensable in constructing the colony, and political alliances with native peoples ensured the success of the conquest at several crucial moments, and only with the aid of native knowledge it was possible to occupy the land and advance the conquest of the immense territory that became known as Brazil. In this sense, peace was a necessity. Yet, in highlighting the centrality of Indians in the settlement of the Portuguese colony in the Americas, it must also be recognized that the relations established there between Portuguese conquerors and native populations were also historically marked by tension and violence. A war of extermination, often masquerading as a “just war,” and slavery became inseparable parts of colonial strategy. Moreover, access to land and the use of indigenous labor could both constitute secure indicators of success in the conquest of Portuguese America. In the process of colonization the Portuguese Crown was confronted by various forms of native resistance and by the differing interests of diverse colonial agents. During the 17th and 18th centuries the Crown faced tensions, disputes, and contradictions in relation to the slavery and freedom of Indians and the way it solved these conflicts revealed the configuration of its indigenist policy.

Article

Although their history can be traced further back to the study of heredity, variability, and evolution at the beginnings of the 20th century, studies on the genetic structure and ancestry of human populations became important at the end of World War II. From 1950 onward, the tools and practices of human genetics were systematically used to attack global health problems with the support of international health organizations and the founding of local institutions that extended these practices, thus contributing to global knowledge. These developments were not an exception for Mexican physicians and human geneticists in the Cold War years. The first studies, which appeared in the 1940s, reflect the emerging model of human genetics in clinical practice and in scientific research in postwar Mexico. Studies on the distribution of blood groups as well as on variant forms of hemoglobin in indigenous populations paved the way for long-term research programs on the characterization of Mexican indigenous populations. Research groups were formed at the Ministry of Health, the National Commission of Nuclear Energy, and the Mexican Social Security Institute in the 1960s. The key actors in this narrative were Rubén Lisker, Alfonso León de Garay, and Salvador Armendares. They consolidated solid communities in the fields of population and human genetics. For Lisker, the long-term effort to carry out research on indigenous populations in order to provide insights into the biological history of the human species, disease patterns, and biological relationships among populations was of particular interest. Alfonso León de Garay was interested in studying human and Drosophila populations, but in a completely different context, namely at the intersection of studies on nuclear energy and its effects on human populations as a result of World War II, with the life sciences, particularly genetics and radiobiology. In parallel, the study of chromosomes on a large scale using newly experimental techniques introduced by Salvador Armendares in Mexico in 1960 allowed researchers to tackle child malnutrition and health problems caused by Down and Turner syndromes. The history of population studies and genetics during the Cold War in Mexico (1945–1970s) shows how the Mexican human geneticists of the mid-20th century mobilized scientific resources and laboratory practices in the context of international trends marked by WWII, and national priorities owing to the construction movement of postrevolutionary Mexican governments. These research programs were not limited to collaborations between research laboratories but were developed within the institutional and political framework marked at the international level by the postwar period and at the national level by the construction of the modern Mexican state.

Article

The establishment of the Jesuit Province of Paraguay in 1609 expanded upon the “spiritual conquest” of the Guaranís of South America. The liminal position of this territory, located between the southern boundaries of the dominions of the Iberian monarchies in America, conditioned the policy of conversion applied to the indigenous peoples who inhabited this region. Missionaries sought to attract the attention of indigenous leaders to catechesis to ensure evangelization, but much of their positive results stemmed from a convergence of mythical and historical motivations. Along with the use of firearms, used to repel the attacks of the bandeirantes from the captaincy of São Paulo, these factors contributed to a political alliance forming between the Jesuits and the catechized Guaraní. This alliance, in turn, allowed for the creation of a successful social, political, and cultural arrangement. The foundation of these Christian Indian settlements—known as missions—was one of the variants of the “Republic of Indians,” a framework for limited indigenous self-government codified in Spanish law, which enabled the Guaranís to overcome increasing social fragmentation and reorient their cultural activities. Since teaching “arts and crafts” was a leading vehicle for evangelization, many indigenous people also became literate. Lessons in reading and writing taught in the Guaraní language, through seminars, catechisms, and dictionaries, familiarized the population of the missions with written culture. Daily life in these Christian communities allowed the natives, under the tutelage of the Jesuits, to overcome the precariousness of the conditions to which they were subjected as exploited workers. It also afforded them an opportunity to recreate a semblance of their way of life (ñande reko) adjusted to colonial parameters.