Trade routes that shaped world history

"Trade routes have popped up throughout ancient history, stitching places of production to places of commerce. Scarce commodities that were only available in certain locations, such as salt or spices, were the biggest driver of trade networks, but once established, these roads also facilitated cultural exchanges—including the spread of religion, ideas, knowledge, and sometimes even bacteria."

minus the bacteria the internet can also be considered a trade route, but of information

source: https://www.mentalfloss.com/article/86338/8-trade-routes-shaped-world-history