Hammurabi Biography. Hammurabi, the ruler of Babylon, is best known for the development of a code of laws known as the Code of Hammurabi, which was used to regulate Mesopotamian society.
Because during that time railroad company's would monopolies on farmers and the act required them to have a reasonable and just cost to use railroads. Hope this helps.
America exported raw goods, that's why they needed slaves. The British exported manufactured goods to the Americas, often produced from said raw goods.