How did andrew carnegie business affect his life?

In the early 1870s, Carnegie co-founded his first steel company, near Pittsburgh. Over the next few decades, he created a steel empire, maximizing profits and minimizing inefficiencies through ownership of factories, raw materials and transportation infrastructure involved in steel making.

Explanation:

Andrew Carnegie introduced a full production cycle in his company from mining of iron ore and coal to the production of rails and railway bridges. Carnegie parted his company by the end of his life. He sold it to several bankers, which gave rise to the world-famous United States Steel Corporation. This allowed Carnegie to do charity work.

Explanation:

answer; i believe the answer is (mesopotamia); modern day