During the late 1800s, what were the industrial leaders called?

Robber barrons and captains of industries.

Explanation:

They used both of those terms to describe the industrial leaders.

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The answer to your question is : Captains of Industry and Robber Barons

These terms were used to refer to the wealthy leaders who used crooked ways to increase their wealth.

becasue in the south they disallowed slavery but in the north slavery was illegial this boilled into because mexico wanted slavery

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answer; i believe the two groups were irish immigrants and chinese immigrants;