Long before Spanish colonization, the indigenous people of Peru kept track of important dates and numbers, and perhaps even stories, using a mysterious coding system of strings and knots called a ...
LIMA, Peru — To the casual observer, they appear to be little more than multicolored tangles of arm-length strings. But a growing number of experts believe that “quipus” may hold the secrets of the ...
To the casual observer, they appear to be little more than multicolored tangles of arm-length strings. But a growing number of experts think "quipus" may hold the secrets of the Inca Empire. The Incas ...
The absence of modern-day calculators did not stop ancient cultures from performing extraordinary feats of mathematics. The ancient Greeks kept count with abaci, frames with rods or grooves for moving ...
To the casual observer, they appear to be little more than multicolored tangles of arm-length strings. But a growing number of experts think "quipus" may hold the secrets of the Inca Empire. The Incas ...
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