What were three main causes or sources of this new integration of Eurasia? What were three important consequences or effects?

What were three main causes or sources of this new integration of Eurasia? What were three important consequences or effects?

The great classical cultures of Eurasia created separate identities but each of these cultures also contained important elements that other peoples adopted. In the classical and post-classical periods (600 BCE to 1450 CE), the peoples and cultures of this vast area had consistent and enduring interactions. What were three main causes or sources of this new integration of Eurasia? What were three important consequences or effects? What made these causes or sources and consequences or effects so important?

Three large parts of the world remained separate from the Afro-Eurasian network. Each had their own experiences and formed their own networks. In what specific ways did the worlds of Inner Africa, the Americas, and the Pacific follow or diverge from three broad patterns of Afro-Eurasian history from 8000 BCE to 1450 CE? What three things can we learn from the different experiences of parallel worlds?