How were the ropes made 40 thousand years ago?

Wonderful intelligence and technicality were primitive people. Otherwise, human civilization can not reach this stage today. If the most important invention is in the history of civilization, the wheel 'rope' is not very important. Today, 40 thousand years ago, people learned to make ropes. How? That's a recent study. University of Tübingen University researcher Nicholas Conrad and his fellow researchers found a piece.

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This device made of ivory is 20.4 centimeters tall and has four holes 7 mm and 9 mm diameter. Cut each leak to perfect. The researchers thought that the ropes would be woven with this device. In the past, a number of such devices were found. These German researchers say that all are ancient stone age. From that time people learn to use ropes. Researchers team members said that how primitive people made ropes was a question mark. This device is the answer to that question.