How did the location of each kingdom contribute to its development?

Kilwa grew rich because it was as far south on the coast as a ship from India could sail in one monsoon season. Using their shipboard cannon, the Portuguese took Sofala, Kilwa, and Mombasa.

I hope that kinda helps I had the same assignments but a little different
:)

The rule of one is a rule or a law that came out when the government saw that the population was growing to fast. The law stated that you may only have one child. Many people had all but one child taken away. People in China really only boys so a lot of little girls were put in baskets and drop off in alleys or markets. they were lucky if they got picked up but most of them died from heat, thirst or starvation.  

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