Paths Without Maps: Navigation & Infrastructure Before GPS
Exploring the sophisticated systems of navigation and infrastructure developed by ancient civilizations before modern technology, from Polynesian wayfinding to Inca highways and medieval innovations.
The Hall Beyond. (2024). 20 forgotten inventions that built Europe before the Renaissance.
Abbasi, A. (2024). Examining the role of Qanats in the social resilience of rural communities in Iran against desertification - Creative economy and new business management approaches. Creative Economics and New Business Management Approaches, 3(1), 37–56.
Boselli, V. A., Borroni, M., Kassout, J., Houssni, M., Kettouch, A., & Cristoforetti, S. C. (2025). Qanats: Ancient innovations nurturing sustainable futures in water management - IRIS. IRIS Blue Papers, 4(1), 14–25.
Cartwright, M. (2014, September 8). The Inca road system. World History Encyclopedia.
Cartwright, M. (2017, November 14). Greek fire. World History Encyclopedia.
Cressey, G. B. (1958). Qanats, Karez, and Foggaras. Geographical Review, 48(1), 27–44.
Esmaeili, G., Habibi, A., & Esmaeili, H. R. (2022). Qanat system, an ancient water management system in Iran: History, architectural design and fish diversity. International Journal of Aquatic Biology, 10(2), 131–144.
Lewis, D. (1972). We, the navigators: The ancient art of landfinding in the Pacific. Australian National University Press.
Lindsey, E. K. (2023). Pius “Mau” Piailug: Master navigator of Micronesia. JSTOR Daily.
Thompson, N. (n.d.). The Star Compass [Diagram]. Hōkūleʻa - Polynesian Voyaging Society.
Paths Without Maps: Navigation & Infrastructure Before GPS - Part 1: Polynesian Wayfinding: Reading the Water Without Instruments
Paths Without Maps: Navigation & Infrastructure Before GPS 1 Paths Without Maps: Navigation & Infrastructure Before GPS - Part 1: Polynesian Wayfinding: Reading the Water Without Instruments 2 Paths Without Maps: Navigation & Infrastructure Before GPS - Part 2: The Qhapaq Ñan: Governing a 25,000-Mile Empire Without the Wheel 3 Paths Without Maps: Navigation & Infrastructure Before GPS - Part 3: Inca Suspension Bridges & State Supply Depots 4 Paths Without Maps: Navigation & Infrastructure Before GPS - Part 4: Harnessing Power: How the Stirrup and Collar Revolutionized Medieval Mobility 5 Paths Without Maps: Navigation & Infrastructure Before GPS - Part 5: The Quiet Engine of Commerce: The Wooden Barrel and the Packaging Revolution ← Series Home The Paradox of the Scattered Islands Imagine sailing thousands of miles across the largest, emptiest ocean on Earth, aiming for a target island smaller than most modern airports. This monumental feat was the standard practice for Polynesian navigators, a civilization that mastered deep-sea voyaging generations before European sailors dared to leave sight of land. Their success defied the skepticism of early Western explorers and anthropologists, who initially dismissed these voyages as accidental drift. Yet, Polynesians made contact with nearly every island in the vast Polynesian Triangle, relying solely on an elaborate, inherited body of knowledge known as wayfinding. This tradition transformed the sea from an empty barrier into a readable map, demonstrating an unparalleled level of environmental intimacy.
...
Paths Without Maps: Navigation & Infrastructure Before GPS - Part 2: The Qhapaq Ñan: Governing a 25,000-Mile Empire Without the Wheel
Paths Without Maps: Navigation & Infrastructure Before GPS 1 Paths Without Maps: Navigation & Infrastructure Before GPS - Part 1: Polynesian Wayfinding: Reading the Water Without Instruments 2 Paths Without Maps: Navigation & Infrastructure Before GPS - Part 2: The Qhapaq Ñan: Governing a 25,000-Mile Empire Without the Wheel 3 Paths Without Maps: Navigation & Infrastructure Before GPS - Part 3: Inca Suspension Bridges & State Supply Depots 4 Paths Without Maps: Navigation & Infrastructure Before GPS - Part 4: Harnessing Power: How the Stirrup and Collar Revolutionized Medieval Mobility 5 Paths Without Maps: Navigation & Infrastructure Before GPS - Part 5: The Quiet Engine of Commerce: The Wooden Barrel and the Packaging Revolution ← Series Home The Improbable Highways of the Andes In 1528, Spanish conquistadores encountered the Inca Empire, a sprawling domain covering 690,000 square miles (1.79 million km²) across the most mountainous terrain on Earth. Connecting this vast territory, stretching 3,200 miles (5,150 km) from Ecuador to Chile, was the Qhapaq Ñan—the royal highway network. Its estimated total length exceeded 40,000 kilometers (25,000 miles), roughly half the distance of the entire United States interstate system. The central paradox of this infrastructural marvel is that it was built and operated without the benefit of iron tools, sophisticated surveying equipment, or the foundational technology of the wheel.
...
Paths Without Maps: Navigation & Infrastructure Before GPS - Part 3: Inca Suspension Bridges & State Supply Depots
Paths Without Maps: Navigation & Infrastructure Before GPS 1 Paths Without Maps: Navigation & Infrastructure Before GPS - Part 1: Polynesian Wayfinding: Reading the Water Without Instruments 2 Paths Without Maps: Navigation & Infrastructure Before GPS - Part 2: The Qhapaq Ñan: Governing a 25,000-Mile Empire Without the Wheel 3 Paths Without Maps: Navigation & Infrastructure Before GPS - Part 3: Inca Suspension Bridges & State Supply Depots 4 Paths Without Maps: Navigation & Infrastructure Before GPS - Part 4: Harnessing Power: How the Stirrup and Collar Revolutionized Medieval Mobility 5 Paths Without Maps: Navigation & Infrastructure Before GPS - Part 5: The Quiet Engine of Commerce: The Wooden Barrel and the Packaging Revolution ← Series Home Conquering the Andean Divide The monumental scope of the Inca road system, spanning 25,000 miles (40,000 km) of rugged terrain, necessitated ingenious solutions for crossing the numerous steep gorges, raging rivers, and deep ravines of the Andes. Inca engineers mastered this challenge by innovating suspension bridges, floating pontoon bridges, and oroya bridges (a rudimentary rope-and-basket gondola). These structures were essential lifelines, allowing the unimpeded flow of goods, armies, and information across the fragmented geography of the empire.
...
Paths Without Maps: Navigation & Infrastructure Before GPS - Part 4: Harnessing Power: How the Stirrup and Collar Revolutionized Medieval Mobility
Paths Without Maps: Navigation & Infrastructure Before GPS 1 Paths Without Maps: Navigation & Infrastructure Before GPS - Part 1: Polynesian Wayfinding: Reading the Water Without Instruments 2 Paths Without Maps: Navigation & Infrastructure Before GPS - Part 2: The Qhapaq Ñan: Governing a 25,000-Mile Empire Without the Wheel 3 Paths Without Maps: Navigation & Infrastructure Before GPS - Part 3: Inca Suspension Bridges & State Supply Depots 4 Paths Without Maps: Navigation & Infrastructure Before GPS - Part 4: Harnessing Power: How the Stirrup and Collar Revolutionized Medieval Mobility 5 Paths Without Maps: Navigation & Infrastructure Before GPS - Part 5: The Quiet Engine of Commerce: The Wooden Barrel and the Packaging Revolution ← Series Home The Unseen Revolution in Muscle Power Centuries before the industrial application of steam, two deceptively simple innovations—the padded horse collar and the stirrup—unlocked enormous potential in human and animal mobility across Europe. These forgotten breakthroughs fundamentally transformed the agricultural economy and the structure of medieval warfare, sparking the continent’s first renaissance not by abstract ideas, but by tangible ingenuity. By optimizing the connection between human and horse, these devices achieved a profound leap in leveraging muscle power, permanently altering the daily fabric of society.
...
Paths Without Maps: Navigation & Infrastructure Before GPS - Part 5: The Quiet Engine of Commerce: The Wooden Barrel and the Packaging Revolution
Paths Without Maps: Navigation & Infrastructure Before GPS 1 Paths Without Maps: Navigation & Infrastructure Before GPS - Part 1: Polynesian Wayfinding: Reading the Water Without Instruments 2 Paths Without Maps: Navigation & Infrastructure Before GPS - Part 2: The Qhapaq Ñan: Governing a 25,000-Mile Empire Without the Wheel 3 Paths Without Maps: Navigation & Infrastructure Before GPS - Part 3: Inca Suspension Bridges & State Supply Depots 4 Paths Without Maps: Navigation & Infrastructure Before GPS - Part 4: Harnessing Power: How the Stirrup and Collar Revolutionized Medieval Mobility 5 Paths Without Maps: Navigation & Infrastructure Before GPS - Part 5: The Quiet Engine of Commerce: The Wooden Barrel and the Packaging Revolution ← Series Home The Fragility of Ancient Trade For centuries, long-distance commerce relied heavily on the fragile clay amphora, a vessel often prone to breakage when subjected to the rough handling of muddy roads or the violent heaving of ships at sea. The loss of precious contents—be it wine, oil, or fish sauce—due to a cracked vessel was an endemic barrier to building trust and confidence in international trade. The risk inherent in packaging limited the volume and distance of reliable commerce across the European continent.
...