4. Why were the slaves treated like they were on the ships to the Americas?

During the 1750s, before the industrial revolution, why did most people see little of the world?

How did the cleveland massacre impact standard oil in 1872? standard oil hired all the laborers who were nearly killed during the cleveland massacre. standard oil became a monopoly in the cleveland oil market after the cleveland massacre. standard oil was bought out by other companies in the city after the cleveland massacre. standard oil closed down to avoid additional violence in the wake of the cleveland massacre.

Why would the free rider problem prevent a private business from investing in the building of a city sidewalk?