Because they needed the protection of the East India Company (EIC) to preserve the Mughal authority. After one century of prosperity the Mughal empire was facing its own decline. Different emperors raise to throne and did very little to save the empire from its collapse.
They faced several fights among claimers to the throne and eventually civil war. Much of the Mughal treasures were looted. In response, the British from the EIC gained trading rights, such as collect taxes, and ultimately political power.
The new Latin American countries formed republics influenced by governments in Europe and the United States.
At the peak of the Roman Empire's reach, around A.D. 117, the Empire stretched as far north as modern Scotland, stretched down through Europe east into Asia as far as the border between modern day Iraq and Iran, with its southern reaches extending into northern Africa.
Answer:
Advances: The freeing of the slaves through the Thirteenth Amendment, the giving of citizenship to African Americans through the Fourteenth Amendment, and the protection of voting rights through the Fifteenth Amendment
Setbacks: The black codes restricted
