The World Network
nThe most important characteristic of the postclassical world was the development of a world network.
nInternational trade and military contacts allowed all types of intellectual and material exchanges.
nDiseases also spread.
nOnce established the network expanded.
nIndividual civilizations still maintained their essential values, but many were operating in a genuinely international framework.
nThe major limitation was that the Americas, Polynesia, Australia, and a few other places were not yet included.