The Incas used colorful knotted cords called Quipu to record numbers and archives such as census data, tax obligations, and storehouse records. They had up to a thousand unique strands. – WTF Fun Facts
Source: https://en.wikipedia.org/wiki/Quipu
Inca
WTF Fun Fact – Bejeweled Guinea Pigs
Archaeologists found a gruesome and shocking discovery in Peru, 100 dead guinea pigs that were sacrificed by the Incan people during the 16th century, adorned with earrings, necklaces, and some wrapped in small rugs. – WTF Fun Facts
Source: https://www.newsweek.com/inca-guinea-pigs-ritual-sacrifice-jewelry-1392942