N,N-Diethyl-meta-toluamide, also called DEET (/diËt/) or diethyltoluamide, is the most common active ingredient in insect repellents. It is a slightly yellow oil intended to be applied to the skin or to clothing, and provides protection against mosquitoes, ticks, fleas, chiggers, leeches, and many biting insects. 1 History.
r n km.t in hieroglyphs. Written records of the ancient Egyptian language have been dated from about 3200 BC. Egyptian is part of the Afro-Asiatic group of languages and is related to Berber and Semitic (languages such as Arabic, Amharic, Tigrinya and Hebrew).The language survived until the 5th century AD in the form of Demotic and until the Middle Ages in the form of Coptic.gyptian is one of the oldest recorded languages known. The national language of modern day Egypt is Egyptian Arabic, which gradually replaced Coptic Egyptian as the language of daily life in the centuries after the Muslim conquest of Egypt. Coptic is still used as a liturgical language by the Coptic Church.
Thus, they invented written scripts that could be used to record this information. The most famous of all ancient Egyptian scripts is hieroglyphic. However, throughout three thousand years of ancient Egyptian civilisation, at least three other scripts were used for different purposes. Using these scripts, scribes were able to preserve the beliefs, history and ideas of ancient Egypt in temple and tomb walls and on papyrus scrolls.