The Roman Empire: The Fall of the Roman Republic. ... As the Roman Republic continually deteriorated throughout the 5th century BC all the way to the 30's BC, the senate continually had less and less power. The fall of the power, some conclude, is in direct relation to the fall of the power of the Roman senate.
By the end of the seventeenth century, the Chesapeake area and the southern colonies, with their enormous rice plantations, developed an economic system wholly dependent on slavery.