<span>Westward Expansion and the American Civil War. To many nineteenth century Americans, the expansion of slavery into Western territories caused a great deal of controversy. ... These fears were realized when the expansion of slavery into western territories entered Congressional debates</span>
Answer:
The Persian Empire was an empire that stretched from India to Europe from 550 B.C.E. to 331 B.C.E. It was ruled by a series of monarchs. An empire is defined as a geographically extensive set of states or peoples that are ruled either by a monarch or by an oligarchy, a small group of ruling elites.
Explanation:
It caused the civil war. The industrial revolution in the North, during the first few decades of the 19th century, brought about a machine age economy that relied on wage laborers, not slaves.