Deforestation is the term that refers to the change in landscape that occurs when humans clear land for farming or other endeavors.
Blackbeard (Edward Teach)
"Capitalism is focused on the market and the individual, while socialism and communism value society collectively", I believe.
The reasons for the fall of the empire include military overreach, invasion by emboldened tribes of Huns and Visigoths from northern and Central Europe, inflation, corruption and political incompetence