"<span>a. During the two centuries following the discovery of the New World, over 90% of the native population were killed by disease and warfare" would be the best option but it should be noted that the 90% figure has been disputed recently.</span>
Political instability Militarism Civil unrest
They realized that nothing really changed much. The freed African-Americans still had almost no political rights and the system was controlled mostly by corrupt politicians who came from the north to become rich. The regular people still had huge farms and turned the former slave system into a system of sharecropping which was in many ways similar to slavery. The freedom was very superficial and in reality people still lived as bad as before the war.
Answer:
Factors that Led to Japanese Imperialism
It was believed that the Meiji period Japan was planned to develop nationalist ideology comprising a merger of inherent and western political philosophies. ... Thus, the growth of Japan as a powerful competitor of the European powers in the age of territorial expansion.