The United States’ history is filled with success stories of people who started from zero stage and by hard work they achieved great success, such people are called entrepreneurs.
The rise of big business and the movement of entrepreneurs came by the middle of the nineteenth century when The United States were the land of opportunities with its enormous natural resources from all kinds.  The industrial revolution found its way to The United States after Europe and so it was an opportunity for the rise of entrepreneurs. Two entrepreneurs, Andrew Carnegie and Join D. Rockefeller achieved great success and wrote their names in the American Business history.
Andrew Carnegie came from Scotland at the age 12, from a very poor family. He worked in a factory for $1.20 and saved his money and invested it to make more money. In his 30s Carnegie saw the future of the country in steel, he built a steel factory and his business was very successful. Carnegie ambition was more than that, he wanted to reduce the competition in his business. He bought the other steel companies. He followed a strategy called vertical integration by which he bought the irons mines and the railroads companies that shipped steel, that way he had all the steel industry under his hands. Soon, he became the richest man in the country.
Join D. Rockefeller’s life was similar to Carnegie. He began poor and invested his small money in oil industry. He also followed vertical integration and controlled all aspects of the oil industry. He bought every small oil company. When he was 38 Rockefeller’s company, Standard Oil, controlled 90 percent of the oil industry in the country.
When one country controls all or almost all of an industry, it’s called monopoly. In 1890s, the federal reduced the power of monopolies. The lives of these two industry leaders illustrate many American values. They were independent and hard workers and also very ambitious in a selfish way.
These huge businesses partly helped make The United States economics very powerful. However, these industry leaders cared about profit more than their workers.
The industry revolution brought more technologies which made workers less wanted and that dropped their wages and raised their hours. With more immigrants and less working opportunities the competition was fierce.
Moreover, workers had no protection in their dangerous working zones and they lost their jobs if they got injured or sick. The low wages, increase of hours and dangerous conditions encouraged the establishment of the labor movement, that is, the creation of trade unions to fight for and protect workers