The ruler put in lots of very specific laws.
During this period, the industrial growth of the United States had great effects on them. Cities have become the country's main economic centers, and the manufacturing and finance industry have overtaken agriculture and livestock as the main sources of income in the United States. The industrialization process drastically increased rural migration. At the end of the American Civil War, about a quarter of the American population lived in cities. In 1918, half of the country's population lived in urban areas. In addition, this period is also marked by the large and unfounded immigration of Europeans to the country.
Answer:
B. Africa
Explanation: Because africa is not appart of the one of contention between the Triple Alliance and the Triple Entente
DMe encantaría ayudarte, pero solo sé español
I think your answer would be, The belief that slaves were personal property and not people (I'm not 100% sure) hope this helps
~ Natalia