A REAL CASE
Documented

The Empire That Wrote in Knots: Why Nobody Can Read a Khipu

2026-09-30 · · Unsolved Ciphers · 7 min read

In 1583 a church council met in Peru and sent an instruction to priests across the country. They were to find a certain kind of object, wherever it was being kept, and burn it.

The objects were bundles of string.

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