Maps of large merchant ships show only part of the trading system. Smaller steamers circulate around Africa, South America, India, Australia, Southeast Asia, and China. They collect goods into major ports that function as hubs for long-distance services. This hub-and-spoke structure helps explain how changing a canal route can redirect development toward a different set of feeder ports and regional networks.
Notable Point · 18:23-20:19
Small steamers feed the major trading hubs
Large-vessel route maps conceal smaller steamers that gather regional cargo into the ports connecting global trade.