Forced labor persisted after the Civil War because it was a crime in the south for any farm worker to search for employment from a new employer without permission from the old employer. This law only applied to Blacks resulting in countless black southerners falling victim to a brutal system of forced labor
C. new tech.....................................................................................
One of the factors that contributed to the rise of the kingdom of Kush was the brief fall of the kingdom of Egypt. With the Hyksos' conquer of Lower Egypt and their subsequent rule over the same, the kingdom of Kush became the superpower in Upper Egypt.
The most economic event was the civil war i hope this helps