What unique factors allowed the east african trading kingdoms to expand their trade

1. They took advantage of monsoons, which helped them regulate trade and predict ideal travel times.

2. Their location in relation to the Indian Ocean Trade Network gave them close-by trading partners to the largest trading network in history.

3. Their materials was high in demand, and they had the greatest supply, so they were able to have consistent trade.

my cultural heritage consists of irish, german, native american, and others.