Egyptian fraction have been called "Horus-Eye fractions" after a theory (now discredited) that they were based on the parts of the Eye of Horus symbol. They were used in the Middle Kingdom in conjunction with the later notation for Egyptian fractions to subdivide a hekat, the primary ancient Egyptian volume measure for grain, bread, and other small quantities of volume, as described in the Akhmim Wooden Tablet. If any remainder was left after expressing a quantity in Eye of Horus fractions of a hekat, the remainder was written using the usual Egyptian fraction notation as multiples of a "ro", a unit equal
Horus Sa Horus Sa Horus Sa (also Horus Za, Sa and Za) was a possible early Egyptian pharaoh who may have reigned during the 2nd or 3rd dynasty of Egypt. His existence is disputed, as is the meaning of the artifacts that have been interpreted as confirming his existence. Horus Sa is known from vessel fragments with black ink inscriptions showing his name. These vessels were found in the east galleries beneath Djoser's pyramid at Saqqara. The inscriptions are short and written in cursive handwritings. In all cases the name "Horus Sa" does not appear within a serekh and its identification as