North Africa and West Africa had limited trade because of Sahara until the Camel became domesticated, they started to trade. The only way they traded was from the Atlantic coast which was long journey.
Answer: Without big farms to run, the people in the North did not rely on slave labor very much. In the South, the economy was based on agriculture. The North wanted the new states to be “free states.” Most northerners thought that slavery was wrong and many northern states had outlawed slavery.
