Answer:
The rapid influx of immigrants made it difficult for local governments to provide basic services. Federal restrictions prevented voters from influencing government decisions at the local level
People died or got killed with weapons , lots of blood.
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.
Can you add some more detail to this question? I can answer it im really good at history but. What explores what l=time period we need more details or at least i do thanks!