For centuries, the vanished Inca fortress of Ancocagua existed only in lore. Now, at a mountaintop site in Peru, researchers ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Here’s what you’ll learn when you read this story: The Inca quipu was a complex ...

Inca bureaucrats recorded all the goings-on in their bustling empire using knotted cords called khipu, where the position and order of the knots represented numbers. They relied on the khipu system to ...

Researchers studying an ancient form of writing used by the Incas in pre-Columbian South America have unraveled new clues to a longstanding mystery. The research, undertaken by Professor Sabine Hyland ...