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The invention of writing dates back to about 3200 BC and belongs to the Sumerians, an ancient people of Mesopotamia. This invention sanctions the passage from prehistory to history. The introduction of writing made it possible to effectively manage issues of an administrative nature, such as the keeping of accounts, business management, as well as to pass on those traditions that until then had always been transmitted orally, with particular reference to the magical ones. / religious. The most used support were the clay tablets made with materials readily available in the area. The tablets, still soft, were engraved with styles, which is thin reeds that were cut obliquely and that allowed the tablets to be drawn with remarkable precision. Once engraved, the tablets were dried in order to give them greater solidity.