Horoscopic Ostraca from Medinet Madi presents thirty-four Demotic ostraca containing forty complete or partial horoscopes. After the provenance and cultural background of the ostraca are laid out, a survey of previous interpretations of the texts from Medinet Madi follows. Then, the previous methods of establishing a date for the collection are examined. Next, introductions are made of mathematical, astronomical, astrological and chronological concepts are made for the benefit of the non-specialist. Among these discussions, the use of numbers and fractions is introduced. Necessary astronomical terminology is defined and the causes of error in astronomical calculations is considered. A definition of horoscope is presented and the elements of a horoscope are established. The compositional style of Demotic and Greek horoscopes is contrasted. The calendars of Greco-Roman Egypt are explicated. The varieties of astrological and astronomical ostraca are defined and the results of a search for such texts among the ostraca of Medinet Madi is reported. The documentary aspects of horoscopic ostraca are discussed and the palaeography of Demotic zodiacal signs and planetary symbols is revisited. After these preliminaries are fixed, the horoscopes are divided into four classes. A transcription, transliteration, translation and commentary is presented for each ostracon. No separation is made between the astronomical and philological commentary. In the conclusion, these ostraca are used to establish a more secure historical dating for Medinet Madi. The range of astrological techniques is outlined and correspondences with the Petosirian tradition are noted. Some tentative conclusions are drawn about the scope of astronomical techniques used at Medinet Madi.
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