When did the berlin conference take place

How was slavery in mesoamerica, africa, and the arab world similar? many enslaved people were forced to pledge loyalty to their owners. many enslaved people worked in exchange for protection from foreigners. many enslaved people were captured during war. many enslaved people taught and tutored children.

How does the concept of competition relate to the arms race between the us and the soviet union during the cold war?

During wwi, literacy tests were used to control immigration, which marked a return of what type of ideology in some americans?