A route of trading silk to other countries from I believe China.
It’s where everything happens, like the big highlight of the story
Answer:
Their challenges were mostly geographical, such as farming and traveling on mountains or wetlands, while a majority of ours are caused by humans damaging the Earth, such as pollution, deforestation and overhunting
Carnegie could cut his costs because he owned the supply of raw materials and the means of production and distribution. Is the answer to your question
Hope I helped :)