| http://www.w3.org/ns/prov#value | - Significant civilizations operated in the Americas (the Olmecs,Maya, and Incas) and also in Africa (Kush, Axum, and Ethiopia).o Agriculture and other developments spread across northern Europe and northern Asia, where semi-civilized peoples developed extensive contacts with older civilizations.o Nomadic societies played a vital role, particularly in central Asia, in linking and occasionally disrup
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