“Divination as practised by means of augury was a rite of the first importance among the Babylonians and Assyrians. This was absolutely distinct from divination by astrology.
The favourite method of augury among the Chaldeans of old was that by examination of the liver of a slaughtered animal. It was thought that when an animal was offered up in sacrifice to a god that the deity identified himself for the time being with that animal, and that the beast thus afforded a means of indicating the wishes of the god.
Now among people in a primitive state of culture the soul is almost invariably supposed to reside in the liver instead of in the heart or brain. More blood is secreted by the liver than by any other organ in the body, and upon the opening of a carcase it appears the most striking, the most central, and the most sanguinary of the vital parts. The liver was, in fact, supposed by early peoples to be the fountain of the blood supply and therefore of life itself.
Hepatoscopy or divination from the liver was undertaken by the Chaldeans for the purpose of determining what the gods had in mind. The soul of the animal became for the nonce the soul of the god, therefore if the signs of the liver of the sacrificed animal could be read the mind of the god became clear, and his intentions regarding the future were known.
The animal usually sacrificed was a sheep, the liver of which animal is most complicated in appearance. The two lower lobes are sharply divided from one another and are separated from the upper by a narrow depression, and the whole surface is covered with markings and fissures, lines and curves which give it much the appearance of a map on which roads and valleys are outlined. This applies to the freshly excised liver only, and these markings are never the same in any two livers.
Certain priests were set apart for the practice of liver-reading, and these were exceedingly expert, being able to decipher the hepatoscopic signs with great skill. They first examined the gall-bladder, which might be reduced or swollen. They inferred various circumstances from the several ducts and the shapes and sizes of the lobes and their appendices. Diseases of the liver, too, particularly common among sheep in all countries, were even more frequent among these animals in the marshy portions of the Euphrates Valley.
The literature connected with this species of augury is very extensive, and Assur-bani-pal’s library contained thousands of fragments describing the omens deduced from the practice. These enumerate the chief appearances of the liver, as the shade of the colour of the gall, the length of the ducts, and so forth.
The lobes were divided into sections, lower, medial, and higher, and the interpretation varied from the phenomena therein observed. The markings on the liver possessed various names, such as ‘palaces,’ ‘weapons,’ ‘paths,’ and ‘feet,’ which terms remind us somewhat of the bizarre nomenclature of astrology.
Later in the progress of the art the various combinations of signs came to be known so well, and there were so many cuneiform texts in existence which afforded instruction in them, that a liver could be quickly ‘read’ by the barû or reader, a name which was afterward applied to the astrologists as well and to those who divined through various other natural phenomena.
One of the earliest instances on record of hepatoscopy is that regarding Naram-Sin, who consulted a sheep’s liver before declaring war. The great Sargon did likewise, and we find Gudea applying to his ‘liver inspectors’ when attempting to discover a favourable time for laying the foundations of the temple of Nin-girsu.
Throughout the whole history of the Babylonian monarchy in fact, from its early beginnings to its end, we find this system in vogue. Whether it was in force in Sumerian times we have no means of knowing, but there is every likelihood that such was the case.”