They: benefited from the gold and salt trade, were influenced strongly by trade. (dense vegetation, not desert, prevented the Islamic conquest of sub-Saharan africa)
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
Explanation: The war ended on November 11, 1918, and America's economic boom quickly faded. Factories began to ramp down production lines in the summer of 1918, leading to job losses and fewer opportunities for returning soldiers. This led to a short recession in 1918–19, followed by a stronger one in 1920–21.
In the United States of America, an interstate compact is an agreement between two or more states. Article I, Section 10 of the United States Constitution provides that "No State shall, without the Consent of Congress... enter into any Agreement or Compact with another State."