Answer:
<em>The Koros were a family (clan) that belonged to Mandinka (West African ethnic group).</em> Story about them we find in the novel <em>Roots</em> written by Alex Haley in 1976, which was a story history of his family looking back for a few generations.
Story begins with Kun-ta who is a member of the Kinte clan. The Koros and the Kintes are rivals. Koros enslave their own race - they kidnap members of Mandinka and sell them to white people who take them to America to sell them further.
Koros do that without the consent of their king mostly to trade them for guns.
Africans had slavery even before the Europeans came, but they treated them in a much less cruel way.
Story goes on to the present time of Alex Haley`s life. It follows his family from Kun-ta and generations after him and their hard struggle under the slavery and racism.
The two type of changes are:
1. Independence
When a certain nation declared its independence, their territory is no longer belong to the country that colonize it. Which means that the national boundary undergone a change in ownership. Before the independence, it belonged to the country that colonize the nation. After the independence it belong to the nation itself.
Example: South American countries declared independence from Spanish Empire
2. State Annexes
During annexation, a certain territory is acquired by another country (could either be done through forces or consensual method). When annexation occurs, the national boundaries of the country that being annexed now belong to the nation that annexed it.
Example: When West Papua was acquired by Indonesia.
The major reason for Zheng He's voyages during the 15th century was to increase the importance of Chinese trade as well as the reputation of his nation, China. The largest port in the world at that time was Calcutta in India where the Chinese spent more time trading with the locals.
Reason 1. Wealth-gold/silver.
Reason 2. Religious Freedom (Pilgrims, Puritans, quakers)
Reason 3. Mercantilism ($$$) from trade, land sales, and fishing.
Reason 4. Expand Trade.
Reason 5. Political Freedom.
Reason 6. Home for debtors/criminals.
