How did the economies of the north and south differ

The South was a primarily agricultural economy with little manufacturing. Lucrative cash crops such as tobacco and cotton were big money in the South. The North, on the other hand, had a very manufacturing-intensive economy that relied on big factories and innovations. With a much bigger population, the North could supply enough workers to churn out all kinds of finished goods. Generally, the North's economy was more stable.

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the right answer is the end of world war ii

after the end of a global wwii all the nations involved, in an attempt to create an organization to maintain world peace. this agreement would work settling international disputes via negotiation and arbitration instead of leading the issues escalate to another war.