In America, the whole working class has shifted during the time the nation underwent a change from a society based of agriculture to a society profoundly based on the industrial activity. With the industrial revolution, started a continuous increase of search for factory employees, who would work on mass production of various products; these would be organized in a steep hierarchy, having mostly an unskilled labor and receiving low wages for many work hours.
Of course, with such conditions, workers were not happy with their work situation and, soon, labor unions began to surge.
This rapid growth and evolution lead to the concentration, in just 1% of the national population, of more wealth than in the remaining 99%, with a massive social difference. By this ...