Loyalty to one's country is called Nationalism.
The action lowered morale. this did not lower morale as many common folk did not understand the need for ports and thought themselves self sufficient.
Historically, they burned the people infected with it(to death if not already dead)
Answer and Explanation: Mansa Musa's pilgrimage to Mecca introduced the wealth and power of Mali to the rest of the Mediterranean. ... The king had carried 30,000 pounds of gold, which signified the immense wealth in his empire. This created an impression on his acquaintances. Hope this helps... :D