Why did long-distance trade flourish in the classical societies?

Question

Quizplus · Accepted Answer

Imperial powers worked hard to keep trade routes secure and safe, allowing for long-distance trade to flourish in the classical societies.
Key Takeaway: Long-distance trade could be free to flourish as long as the trade routes were well maintained and safe. When societies and their rulers weakened, roads were often not as well maintained. Thus, travel became unsafe and trade would significantly decline.

Why Did Long-Distance Trade Flourish in the Classical Societies