In the religion of ancient Rome, a haruspex (plural haruspices; also called aruspex) was a person trained to practise a form of divination called haruspicy (haruspicina), the inspection of the entrails (exta—hence also extispicy (extispicium)) of sacrificed animals, especially the livers of sacrificed sheep and poultry. The reading of omens specifically from the liver is also known by the Greek term hepatoscopy (also hepatomancy). The Roman concept is directly derived from Etruscan religion, as one of the three branches of the disciplina Etrusca. Such methods continued to be used well into the Middle Ages, especially among Christian apostates and pagans. The Latin terms haruspex and haruspicina are from an archaic word, hīra = "entrails, intestines" (cognate with hernia = "protruding viscera" and hira = "empty gut"; PIE *ǵʰer-) and from the root spec- = "to watch, observe". The Greek ἡπατοσκοπία hēpatoskōpia is from hēpar = "liver" and skop- = "to examine". Ancient Near East The Babylonians were famous for hepatoscopy. This practice is mentioned in the Book of Ezekiel 21:21: One Babylonian clay model of a sheep's liver, dated between 1900 and 1600 BC, is conserved in the British Museum. The Assyro-Babylonian tradition was also adopted in Hittite religion. At least thirty-six liver-models have been excavated at Hattusa. Of these, the majority are inscribed in Akkadian, but a few examples also have inscriptions in the native Hittite language, indicating the adoption of haruspicy as part of the native, vernacular cult. Haruspicy in Ancient Italy Roman haruspicy was a form of communication with the gods. Rather than strictly predicting future events, this form of Roman divination allowed humans to discern the attitudes of the gods and react in a way that would maintain harmony between the human and divine worlds (pax deorum). Before taking important actions, especially in battle, Romans conducted animal sacrifices to discover the will of the gods according to the information gathered through reading the animals' entrails. The entrails (most importantly the liver, but also the lungs and heart) contained a large number of signs that indicated the gods' approval or disapproval. These signs could be interpreted according to the appearance of the organs, for example, if the liver was "smooth, shiny and full" or "rough and shrunken". The Etruscans looked for the caput iocineris, or "head of the liver". It was considered a bad omen if this part was missing from the animal's liver. The haruspex would