Estados Unidos debería haber tenido subversión comunista en la década 1950 ?

Which plan proposed to maintain open trade between china and western nations? open door policy national sovereignty missionary diplomacy salutary neglect

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 were the economies of the inca empire and ancient river valley civilizations such as egypt and phoenicia different?