This mentions the professor Upton and his database but left out interesting story about the undergrad student who deciphered one for one correspondence between

This mentions the professor Upton and his database but left out interesting story about the undergrad student who deciphered one for one correspondence between khipu and Spanish records and helped compile the database. The fact that most khipu were destroyed by the Spanish is a terrible loss. https://www.newscientist.com/article/mg23931972-600-we-thought-the-incas-couldnt-write-these-knots-change-everything/ https://www.newscientist.com/article/mg23931972-600-we-thoug...