Three Big Things:
1. The Swahili Coast was an important part of the Indian Ocean Trade Network in the 12th – 15th centuries. It’s a useful historical example of trade networks, cultural diffusion, and interaction between man and environment.
2. Over time, the people of the Swahili Coast evolved into a series of independent city-states sharing a common language (Swahili), a common faith (Islam), and a coherent economic system (er… “Trade”) – all of which were adapted and substantially modified to fit their local needs and collective culture.
3. The Swahili Coast declined after the Portuguese tried to take over Indian Ocean trade and mandate adherance to their superior Euopean whims. It didn’t work, but it did enough damage that the glory days were no more.