The research aims to produce valid information and must use reliable instruments that guarantee accurate and make it quantifiable and possible reproducibility. Allowing the exclusion or at least control prejudice of personal insights and trends that may distort the results.
miércoles, 12 de enero de 2011
At its peak in the mid-12th century, Cahokia was by far the largest native community in North America. Smaller settlements shared similar features, including platform mounds, large plazas, and protective stockades.