who led the expansion of the steel industry
History of the steel industry (1850–1970) From 1875 to 1920 American steel production grew from 380,000 tons to 60 million tons annually, making the U.S. the world leader. The annual growth rates in steel 1870â€“1913 were 7.0% for the US; 1.0% for Britain; 6.0% for Germany; and 4.3% for France, Belgium and Russia, the other major producers.[29] This explosive American growth rested on solid technological foundations, assisted by other factors, including African-American forced convict labor, the protective tariff and the continuous rapid expansion of urban infrastructures, office buildings, factories, railroads, bridges and other sectors that increasingly demanded steel. The use of steel in automobiles and household appliances came in the 20th century.
Second Industrial Revolution The Second Industrial Revolution, also known as the Technological Revolution,[1] was a phase of rapid industrialization in the final third of the 19th century and the beginning of the 20th. The First Industrial Revolution, which ended in the early to mid 1800s, was punctuated by a slowdown in macroinventions[clarification needed] before the Second Industrial Revolution in 1870. Though a number of its characteristic events can be traced to earlier innovations in manufacturing, such as the establishment of a machine tool industry, the development of methods for manufacturing interchangeable parts and the invention of the Bessemer Process to produce steel, the Second Industrial Revolution is generally dated between 1870 and 1914 (the start of World War I).[2]