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Explain one major pattern of cultural interaction between nomadic and sednetary socities in afro eurasia before 1450 ce

What project establish leonardo da vincis reputation as a creative and talented engineer

Characteristics of what type of economic system are being described below? 1.economy in which some/all of the basic economic questions answered by central authority 2.trade generally limited to what is produced through the influence of the government a.command economies. b.market economies. c.traditional economies.