Which ancient supply chain innovation was known as the 'King's Highway' and facilitated trade across nearly 1,700 miles of diverse terrain?

Before modern logistics and global shipping, ancient civilizations developed sophisticated supply networks that powered their economies and enabled their cultural achievements. These early supply chains were marvels of innovation, often spanning vast distances and overcoming significant geographical challenges. Test your knowledge about how ancient peoples moved goods, managed resources, and built commercial empires that shaped history.

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The Persian Royal Road, which connected Susa to Sardis across the Achaemenid Empire
The Roman Via Appia, which connected Rome to Brundisium on the Adriatic coast
The Silk Road, which connected China to the Mediterranean through Central Asia
The Inca Road System, which connected Cusco to the far reaches of the empire