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 ...

Francisco Pizarro and his fellow conquistadors supposedly wiped out the last of the Incas nearly 500 years ago, but you'd never know it in Cuzco, their old capital.

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 ...