They stopped farming and growing crops on one location and started growing and farming crops at another location. This enabled the soil to recuperate and gain the required minerals which makes good soil also fertile
The aftermath of the Civil War was exhilarating, hopeful and violent. Four million newly freed African Americans faced the future of previously-unknown freedom from the old plantation system, with few rights or protections, and surrounded by a war-weary and intensely resistant white population.
Answer: Aqueducts
Explanation: They were first developed around 312 B.C., these engineering marvels used gravity to transport water along with the stone, lead and concrete pipelines and into city centers. Aqueducts liberated Roman cities from reliance on nearby water supplies and proved priceless in promoting public health and sanitation.
Deficit spending or budget deficit
