Answer;
They became rich by building monopolies
Explanation;
-America's tycoons in the 19th and early 20th centuries, nicknamed as "robber barons," built massive empires and accumulated unprecedented wealth.
-Many of these men gained their vast fortunes either at the expense of their factory workers or by methods that were considered unscrupulous even back then, a time when insider trading wasn't yet outlawed.
-However, some of them also gave away their fortunes to build universities, hospitals, libraries, and museums that still dot America today.
a smaller industrial base, fewer rail lines, and an agricultural economy based upon slave labor made mobilization of resources more difficult
Answer:
The Mississippians are known for being great builders of cities. What was Cahokia? Cahokia was a city covering about 5 square miles, contained over 100 flat-topped pyramids and mounds, and was home to an estimated 16,000 people. Does this answer your question?
Explanation:
