The main way in which domesticating livestock allowed civilizations to spread is that people were freed up to do other things like woodworking and opening shops, since they no longer needed to hunt and gather their food and resources.
The Byzantine Empire was the eastern continuation of the Roman Empire after the Western Roman Empire's fall in the fifth century CE. ... Changes: The Byzantine Empire shifted its capital from Rome to Constantinople, changed the official religion to Christianity, and changed the official language from Latin to Greek.
He Moved around and taught about the ideas about Greek culture.