In Clive Cussler’s thriller Inca Gold, a crucial clue in an international treasure hunt is encoded in an ancient tangle of knotted, colored strands. Using a computer to identify patterns, an expert ...

Cut twine or string into 8 equal lengths of approximately 24-34 inches (depending on how large your container is). Knot the ends. Lay out the string on a flat surface and divide the 8 strings into 4 ...

Lima: In a dry canyon strewn with the ruins of a long-dead city, archaeologists have made a discovery they hope will help unravel one of the most tenacious mysteries of ancient Peru: how to read the ...

CAMBRIDGE, Mass. -– Anthropologists at Harvard University have found evidence that ancient Inka accountants shared numbers across their sprawling bureaucratic hierarchy using khipu, aggregations of ...

Cut the twine or string into eight equal lengths of approximately 24-34 inches, depending on how large your container is. Knot the ends. Keep creating a row of knots by repeating this step two to four ...