The 20th century entailed many ups and downs, such as the fall of the Standard Oil Company by President William Taft, creator of the first assembly line by Henry Ford, and the opening of the Panama Canal. Most importantly, the U.S. along with other allies entering World War I and II showed just how dominant the U.S. was, both domestically
and internationally. Showing pure dominance over other countries, the U.S. became the Policemen of the World, which is still thriving today. This paper will describe