Answer:
Ancient Greece, there has been no other area that was so spread out yet so successful. During this time, and still today, the different city-states and civilizations were far apart. Making sea travel dominant, there was not many places to farm so all food had to imported into the area.
Explanation: All i could think off
It would be d I would say
Printing press. It was easier to share ideas and release the information faster. It also helped increase literacy rates so more people could read about other places and people, such as during the Age of Exploration.