Discovery of a unique drainage and irrigation system that gave way to the 'Neolithic Revolution' in the Amazon
A pre-Columbian society in the Amazon developed a sophisticated agricultural engineering system that allowed them to produce ...
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Wildlife Window: Early explorers Pike, Long, Fremont and Gunnison defined Colorado as a place
Zebulon Montgomery Pike was assigned the task of exploring and mapping both the Arkansas River and the Red River as possible boundaries with New Spain. Stephen Harriman Long was assigned to follow ...