The use of women, children and immigrant allowed industrialists and factory owners to keep wages low for native born men. This was an important catalyst for the organization of labor unions, Children often worked long hours for low pay. The same was true of women and immigrants.
African society was torn apart by the slave trade, the Americas exported finished goods to Europe, and European countries invested in the American stock market. it should be this one
What is it you need exactly?
They did not created reasonable scheduling expectations