Serfs, also known as peasants, were the lowest class of citizen in feudal societies. They were allowed to live on land own by Lords in return for labor, which was practically slavery.
There originally native from Africa
It was Great Britain. You can see it through the fact that English is still spoken there. Southern Rhodesia is today's Zimbabwe and Northern Rhodesia is today's Zambia.
Answer:
The imaginary line of Demarcation was drawn from the north to the south through the Atlantic Ocean, splitting it between Portugal and Spain.