Prohibit the massive immigration of mainly intellectuals into more prosperous west Berlin, thereby safeguarding the power and control of the east German government and the community bloc there.
The African empires remained largely as traditionalists and agriculturists. They stayed in their territories working hard to achieve progress. The Swahili city-states were traders and craftsmen. Their culture had been influenced by Middle-Easters and Indian territories. They were able to make dealings with overseas territories which helped them increase their economy.
