Have the Mali discover them first.Just popped into my head, go nuts. Make a Guarani Emirate (or some other form of Islamic Guarani government) exist at any point in history.
Actually, there was something similar happening in Donnacona's Dream... The moriscos were deported to South America rather than North Africa and were used as cheap labour. The fled their Spanish overlords and eventually converted the Mapuche to Islam. Replace "Mapuche" with "Gaurani" and you're all set.Just popped into my head, go nuts. Make a Guarani Emirate (or some other form of Islamic Guarani government) exist at any point in history.