Answer:
From 1861 to 1900, the Civil War fostered a great deal of economic change in the United States. During this period, the economic change most fostered by the Civil War included (1) an end to slavery; (2) an increase in the need for cheap labor to work in the factories; and (3) an increase in railroad building.
Explanation:
For the United States, the pursuit of freedom was born from its origins, and has a lot of relation to the war, taking examples that the Americans fought since the Independence of the 13 Colonies, later fought the American civil war, and finally the most important world war, World War II. For the history of the United States, freedom has been obtained through war with different powers and between the same country, to liberate America from slavery. Many of today's US bellicose interventions have been to liberate areas considered oppressed or dangerous, and although this is highly debatable globally, such actions have been pursued seeking freedom.
Answer:
Well based on the fact that the very first patented rock crushing machine was made in the year 1830, and the first successful, Eli Whitney Blake's, was in 1858, I'd say the development process was around 30 years.
