Bioarchaeological contributions to the study of violence.

The bioarchaeological record has an abundance of scientific evidence based on skeletal indicators of trauma to argue for a long history of internal and external group conflict. However, the findings also suggest variability, nuance, and unevenness in the type, use, and meaning of violence across time and space and therefore defy generalizations or easy quantification. Documenting violence-related behaviors provides an overview of the often unique and sometimes patterned cultural use of violence. Violence (lethal and nonlethal) is often associated with social spheres of influence and power connected to daily life such as subsistence intensification, specialization, competition for scarce resources, climate, population density, territorial protection and presence of immigrants, to name just a few. By using fine-grained biocultural analyses that interrogate trauma data in particular places at particular times in reconstructed archaeological contexts, a more comprehensive view into the histories and experiences of violence emerges. Moreover, identifying culturally specific patterns related to age, sex, and social status provide an increasingly complex picture of early small-scale groups. Some forms of ritual violence also have restorative and regenerative aspects that strengthen community identity. Bioarchaeological data can shed light on the ways that violence becomes part of a given cultural landscape. Viewed in a biocultural context, evidence of osteological trauma provides rich insights into social relationships and the many ways that violence is embedded within those relationships.

Centers of control: Revealing elites among the Ancestral Pueblo during the "Chaco Phenomenon".

The use of violence as a means of social control among higher status members of the Ancestral Pueblo is explored by using data derived from the burials and the burial context of several sites between AD 850 and 1300. High-status burials, while relatively rare in the archeological record, are of interest because of the role the individuals are assumed to have played in the culture. It has been suggested that there were "elites" among the Ancestral Pueblo during a particularly volatile period that corresponds with the growth, development, and decline of Chacon Canyon and to a lesser extent Aztec Ruins, two major political and ritual centers. Using a bioarchaeological approach that integrates the human remains with the archeological context, burials from Chaco Canyon were compared with burials from other sites in the region based on demographic (age and sex), nutritional (stature), activity (robusticity and entheses), health (pathological conditions), violence (cranial trauma), and cultural (mortuary pattern) patterns. Crucial for expanding our understanding of the role of hierarchy and social control in the Pueblo world, these data suggest that there were high-status individuals who functioned as political and ceremonial leaders.

Battered and abused: Analysis of trauma at Grasshopper Pueblo (AD 1275-1400).

Increasing violence and inter-group conflict in the American Southwest is prevalent into the 13th and 14th centuries AD. In the northern Mogollon region during this time period, the site of Grasshopper Pueblo experienced a shift in social organization as population movements occurred in response to regional stressors. The skeletal remains of 187 adult individuals from the site are analyzed for nonlethal and lethal trauma, musculoskeletal stress markers, and pathology as indicators of changing social dynamics. Nonlethal, healed trauma is present in all adult age groups and both sexes. Approximately one-third (n=63) of the population has healed cranial depression fractures. Females and males are fairly equal in the proportion of cranial injuries incurred; however more females are injured overall when post-cranial injuries are added. Musculoskeletal stress markers do not differ substantially among age groups or between sexes. Heavy musculature development is also similar for groups with and without cranial depression fractures. The results of this study suggest that interpersonal violence was ubiquitous within the pueblo and may have escalated as the community grew in size. Immigrants from other parts of the Southwest may have sought refuge at Grasshopper only to find that the community was experiencing its own social stress.