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  1. Knotted cords may be the first evidence that Incas taxed ... - Science News

  2. Khipus to Keep Away the Living Dead - Anthropology News

  3. The College Student Who Decoded the Data Hidden in Inca Knots

  4. Researchers May Be Closer to Solving Ancient Inca Mystery

  5. Discovery May Help Decipher Ancient Inca String Code

  6. Twisted textile cords may contain clues to Inca messages - Science News

  7. Untangling an Accounting Tool and an Ancient Incan Mystery

  8. Unraveling an Ancient Code Written in Strings

  9. Unraveling Khipu's Secrets | Science - AAAS

  10. What Do We Know About Khipus? — Google Arts & Culture