This is a bit subjective, but it could be argued that social change had the biggest change in Southern life, since the abolition os slavery (which was inherently a social issue) led to the biggest changes.
The Byzantine Empire, Holy Roman Empire
Answer:
the basic driver of West Africa's economy
Explanation:
the majority of people depends for their livelihood (Gyasi and Uitto-1997)
Most farms are/ were small with typically 1 through 5 hectares
It is believed to be Viking artifact, evidence of them not only coming to North America (confirmed with L'Anse Aux Meduses, Newfoundland, Canada) but to the US itself also