If you could only select one answer, my guess would be education and prevention.
Large knowledge structures. hope this helps (:
1. Erie Canal.
2. Black people were not treated fairly in the whaling industry.
3. Slaves were considered property, age didn’t really matter.
Hope this helps you!
-Ming Dynasty.
-Zhu Yuanzhang's army eliminates the military forces of the Yuan Dynasty.
-Zhu declares himself the emperor of China.
-Construction on the Great Wall of China begins.
-Maritime trade is banned in China.
-Construction begins on the Forbidden City.
-The fourth Chinese domination of Vietnam begins.
