I believe the answer is 4. During the reign of Askia Muhammad, the Songhai empire reached its greatest size.
Askia Muhammad was an emperor, military commander, and political reformer of the Songhai Empire in the 15th century. His rule resulted in trade with Europe and Asia, building of lots of schools, and spread of Islam through his empire.
Hope this helps! Please let me know if I'm wrong :)
Answer:
Urbanization
Explanation: Millions poured into cities for jobs in factories during the industrial era. This rapid urbanization resulted in overpopulation, crowded tenements, strain on city service, health issues etc.
No.
there really isn't an excuse to why anybody isn't treated or seen as an equal. Everybody is and should be treated an equal. In back then, if you're going to create equality and speak equality you should probably practice what you preach.
The Mongols brought a lot of change to China. They undid the long-standing dynastic system of Chinese government and changed the system of government, getting rid of civil service exams that had put government bureaucrats in power.