By 1804 almost all the northern states had slavery

Why was hawaii so important to the united states & why did japan bomb pearl harbor?

Explain the importance of president harry truman's order to integrate the u. s. military and the federal government.

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.