What revolutionized trade across the Sahara?

The introduction of the camel in the early centuries AD revolutionized trade across the Sahara Desert. These animals, particularly the dromedary camel, could travel long distances without water, making it possible to establish trade routes that connected sub-Saharan Africa with North Africa and beyond. This led to the growth of caravan trade, facilitating the exchange of goods like gold, salt, and textiles, and significantly enhancing economic and cultural interactions between different regions.