Give a brief account of its importance and some of its major players.

The development of the United States between 1860 – 1900

Part A: Pick an industry that was critical to the development of the United States between 1860 – 1900.  Give a brief account of its importance and some of its major players.Part B: What would it have been like to work in this industry? Put yourself in the shoes of a 19th century employee of one of the companies you mentioned in Part A.