The ancient Inca had no known written language, but they may have used an intricate language of knots. Khipu, or quipu, taken from the Quechua word for “knot,” are collections of cotton or ...

Archaeologists say the Incas, brought down by the Spanish conquest, used khipus — strands of cords made from the hair of animals such as llamas or alpacas — as an alternative to writing.

On Nov. 16, 1532, Francisco Pizarro first encountered the Inca emperor Atahualpa in the town of Cajamarca in the northern highlands of Peru. Atahualpa was accompanied by an army of several ...

It reveals itself in the vivid Inca imagery hiding in plain sight in the paintings of the Last Supper and Virgin Mary in Cuzco's cathedral; in the street names, which tend to grow more and more ...

The vanished Inca civilisation of the Andes, long thought to have no writing, invented a seven-bit binary code to store information more than 500 years before the invention of the computer, argues ...