Peruvian History, decisive dates by Abraham Nowitz 10000–3000 BC Human settlement, based on marine resources and rudimentary floodplain agri- culture, appears on the Peruvian coast. Cotton Preceramic Period  3000–1800 BC First known urban settlement of the Americas established on the coast at Caral. Simple cotton textiles appear. Initial Period 1800–800 BC Irrigation agriculture appears on the coast, together […]