Indigo, an ancient dye, may have originated in the Peruvian Andes, according to new research. Earliest use found 6200 years ago.
The Super-Ancient Origins of Your Blue Jeans
The World of Indigo – Schacht Spindle Company
Earliest Evidence of Indigo Dye Found at Ancient Peruvian Burial Site, Smart News
Our Story – Aya Eco Fashion EU
6,000-year-old fabric reveals Peruvians were dyeing textiles with indigo long before Egyptians - Los Angeles Times
Our Story – Aya Eco Fashion EU
Ancestral indigo cultivation and dying in the Rift Valley
Indigo Dye: A Shared Language in the Global South
Early pre-Hispanic use of indigo blue in Peru
TYWKIWDBI (Tai-Wiki-Widbee): The first known use of indigo dye