texts appear from about 2600 BC. The Pyramid Texts are the largest body of literature written in this phase of the language. One of its distinguishing characteristics is the tripling of ideograms, phonograms, and determinatives to indicate the plural. Overall, it does not differ significantly from Middle Egyptian, the classical stage of the language, though it is based on a different dialect. In the period of the 3rd dynasty (c. 2650 – c. 2575 BC), many of the principles of hieroglyphic writing were regularized. From that time on, until the script was supplanted by an early version of Coptic (about the third and fourth centuries), the system remained virtually unchanged. Even the number of signs used remained constant at about 700 for more than 2000 years. Middle Egyptian Middle Egyptian was spoken for about 700 years, beginning around 2000 BC. As the classical variant of Egyptian, Middle Egyptian is the best-documented variety of the language, and has attracted the most attention by far from Egyptology. Whilst most Middle Egyptian is seen written on monuments by hieroglyphs, it was also written using a cursive variant, and the related hieratic. Middle Egyptian first became available to modern scholarship with the decipherment of hieroglyphs in the early 19th century. The first grammar of Middle Egyptian was published by Adolf Erman in 1894, surpassed in 1927 by Alan Gardiner's work. Middle Egyptian has been well-understood since then, although certain points of the verbal inflection remained open to revision until the mid-20th century, notably due to the contributions of Hans Jakob Polotsky. The Middle Egyptian stage is taken to have ended around the 14th century BC, giving rise to Late Egyptian. This transition was taking place in the later period of the Eighteenth Dynasty of Egypt (known as the Amarna Period). Middle Egyptian was retained as a literary standard language, and in this usage survived until the Christianisation of Roman Egypt in the 4th century. Late Egyptian Late Egyptian, appearing around 1350 BC, is represented by a large body of religious and secular literature, comprising such examples as the Story of Wenamun, the love poems of the Chester–Beatty I papyrus, and the Instruction of Any. Instructions became a popular literary genre of the New Kingdom, which took the form of advice on proper behavior. Late Egyptian was also the language of the New Kingdom administration. The Hebrew Bible contains some words, terms and names that