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13:6 · We do not know when this maze or labyrinth structure first was conceived, but it is found among the ideograms carved into rock faces in Val Camonica in the southern Alps. They look like most neolithic rock carvings, and might well have been carved about 3,000 years ago, although we cannot be sure. We see this ideogram on an Etruscian vase from about 550 B.C.

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