<sod>Before the arrival of Europeans, the boundaries between these groups and their subgroups were marked by wars that arose from differences in culture, language and moral beliefs.<ref>Fausto, Carlos "Os Índios antes do Brasil" ("The Indians before Brazil") {{pt icon}} Jorge Zahar Ed. 2000 ISBN 857110543X pages 45–46, 55 (last paragraph)</ref> These wars also involved large-scale military actions on land and water, with [[cannibalism|cannibalistic]] rituals on [[Prisoner of war|prisoners of war]].<ref>Gomes, Mercio P. "The Indians and Brazil" University Press of Florida 2000 ISBN 0813017203 pp. 28–29</ref><ref>Ibidem Fausto 2000, pp 78 to 80</ref> While heredity had some weight, leadership status was more subdued over time, than allocated in succession ceremonies and conventions.<ref>Ibidem Fausto 2000</ref> [[Slavery]] among the Indians had a different meaning than it had for Europeans, since it originated from a diverse socio-economic organization, in which asymmetries were translated into [[kinship]] relations.<ref>Ibidem Fausto 2000, page 50</ref><eod>
<sod>Before the arrival of Europeans, the boundaries between these groups and their subgroups were marked by wars that arose from differences in culture, language and moral beliefs.<ref>Fausto, Carlos "Os Índios antes do Brasil" ("The Indians before Brazil") {{pt icon}} Jorge Zahar, Ed. 2000 ISBN 857110543X pages 45–46, 55 (last paragraph)</ref> These wars also involved large-scale military actions on land and water, with [[cannibalism|cannibalistic]] rituals on [[Prisoner of war|prisoners of war]].<ref>Gomes, Mercio P. "The Indians and Brazil" University Press of Florida 2000 ISBN 0813017203 pp. 28–29</ref><ref>Ibidem Fausto 2000, pp 78 to 80</ref> While heredity had some weight, leadership status was more subdued over time, than allocated in succession ceremonies and conventions.<ref>Ibidem Fausto 2000</ref> [[Slavery]] among the Indians had a different meaning than it had for Europeans, since it originated from a diverse socio-economic organization, in which asymmetries were translated into [[kinship]] relations.<ref>Ibidem Fausto 2000, page 50</ref><eod>