Monopolis started in the U.S. IN 1870-1900. Monopolis started because people wanted power. What a monopoly is, is one or more people or company's totally dominate an economic market.
Henry Bessemer was most widly known for making modern steel. This was in 1813-1898. This was in England. Henry Bessemer was the creator of Bessemer's process.
Sam Gompers is the leader of the union labor. He was born in San Antonio, Texas and died in London, united kingdom. He when he was little he was a cigar maker.
The people that did it are the North and South. During 1895-1915 the U.S. was expanding greatly. Railroads made it easier to transport people, food, and materials.