06/03/2026
When a Map Cost as Much as a Ship
Say you're a sailor in the 1500s. If you wanted to sail for spices, silver, or silk, you first had to decide:
buy the ship… or buy the map that told you where to sail it.
For centuries, maps were hand-drawn, tightly controlled, and often wildly wrong.
Longitude didn’t work yet. Cartographers copied each other’s mistakes.
Some maps were deliberately falsified to protect trade secrets.
And the people who controlled accurate maps controlled everything.
Let's explore:
Why early maps were so expensive
How inaccurate charts could bankrupt, or kill sailors
Why nations treated maps as state secrets
How cartography became one of history’s most powerful information monopolies
This isn’t just a story about old maps.
It’s a story about information gatekeeping, and how access to knowledge has always shaped wealth, power, and survival.
Maps weren’t always cheap, accurate, or widely available.
Early nautical charts, portolan maps, and Renaissance world maps shaped exploration, trade, and empire, often based on incomplete or deliberately misleading information.
Topics covered include:
cartography history, early navigation, Renaissance maps, maritime trade routes, map monopolies, age of exploration, portolan charts, longitude problem, historical geography
We believe maps still matter, as tools, stories, and objects worth living with.
That belief is what we build around
