Inca Trail is the extensive trail system built during the Inca Empire. All the routes of South America directed to Cusco, the main South American metropolis of the pre-Columbian period, legacy of an old cultural tradition.
With that, they could move goods, supplies, and even armies in a much easier way, which helped with the maintenance of their empire.
People hold less money and more bonds. Artistic traditions do not change over time, thus remaining true to that community. It led to wealth creation and opportunities for African society to expand and grow.