The most significant factor in the development of early societies in West Africa was likely the spread of ironworking.
The advent of iron tools and implements revolutionized agricultural practices, allowing for more efficient cultivation and increased agricultural surplus. This surplus not only sustained larger populations but also facilitated the establishment of permanent settlements. With the ability to clear land for farming, construct more durable structures, and engage in various specialized activities, such as crafting and trade, ironworking became a catalyst for the growth of settlements into cities.
Moreover, the development of iron tools would have played a crucial role in other aspects of daily life, including hunting, construction, and resource extraction. As communities grew more complex and interconnected, the specialization of labor and increased local trade naturally followed, laying the groundwork for the emergence of organized kingdoms in West Africa. While geography undoubtedly played a role, and the specialization of labor and trade were consequential, the transformative impact of ironworking on agriculture and the overall socio-economic landscape likely played the most pivotal role in fostering the development of thriving early societies in the region.