Answer:
They had never seen these diseases so their immune system couldn't handle them. So, lots of people died and the population went down.
Answer:
Although scholarly debate continues about the exact causes of the Revolution, the following reasons are commonly adduced: (1) the bourgeoisie resented its exclusion from political power and positions of honour; (2) the peasants were acutely aware of their situation and were less and less willing to support the .
Answer:
Industrialization, along with great strides in transportation, drove the growth of U.S. cities and a rapidly expanding market economy. It also shaped the development of a large working class in U.S. society, leading eventually to labor struggles and strikes led by working men and women.