The Swahili City states went through their collective apex from 600-1450 AD because of the Indian Ocean Trade Networks. The majority of these city states went under the control of the Sultan empire. After this all were later conquered by the Portuguese empire where their trade economies all remained relevant but their roles were diminished in some capacities. While the Portuguese never gained full control of the cities, their dominion was enough to weaken the independent cities' trading power, and after the Portuguese threat had been removed, the city-states never fully regained their dominance or significance in trade. Today the cities mentioned in this blog have vastly different economies from one another, however, areas along the East African coast are still very involved in international trade, some of which occurs on the same trade routes used during the before mentioned time period.