That business cycle would be Expansion
Hope this helps
It took two to three weeks.
Answer: 175 million years ago
Harriet Tubman gotten away from subjection in the South to end up plainly a main abolitionist before the American Civil War. She was naturally introduced to subjugation in Maryland in 1820, and effectively gotten away in 1849.
Industrialization in the north 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. I hope that this is the answer that you were looking for and it has helped you.