They both depended on the rivers. And human sacrifice XD. <span />
Zimbabwe was along one of the most significant trading routes, and by taxing the active trade going on through the city(and the state), the Zimbabwe kings made a lot of profit.
The two classes are the proletariat which is the working class who make up the majority of the population within society and must work to survive
She wanted to lead reform so the Hull house was made so that education and social services could be provided to the working class immigrants and laborers.