The silk road was an ancient network of trade routes that connected the East and West. It was central to cultural interaction between the regions for many centuries.
Christianity spread through missionary work and its affiliation with governments. Christianity provided comfort during political and social unrest. The Christian message spread quickly throughout the Roman Empire
The Museum of Alexandria and the institutionalization of knowledge. Aristotelian system: provided a spherical, physical model compatible with medieval physics. Scholastic preoccupation with terms led to the classification of physics into kinematics and dynamics.