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.
The main benefit of slavery to governments in the colonies is that it provided a system of almost entirely free labor, since the slaves were not compensated for their work, which took place primarily in fields. <span />
The people who lived there generally believed that it was a safer way
He was responsable for wrighting famose.....
