Respuesta :
Answer:Reducing the cost, time, and labor needed to make steel through this valuable process, allowed the transition between construction through wrought iron possible, and allowed the creation of some of the most incredible construction projects in history.
Explanation: c:
Answer:
He created the Bessemer process
Explanation:
The Bessemer process was a method of mass producing steel in the mid-1800s, it contributed to Carnegie's monopoly and I believed help start the industrial and urbanization in America. Hope this helps somewhat
