The Phoenician alphabet, called by convention the Proto-Canaanite alphabet for inscriptions older than around 1200 BC, is the oldest verified consonantal alphabet, or abjad. It was used for the writing of Phoenician, a Northern Semitic language, used by the civilization of Phoenicia. It is classified as an abjad because it records only consonantal sounds (matres lectionis were used for some vowels in certain late varieties). The Phoenician alphabet is derived from Egyptian hieroglyphics 13000–1342F and became one of the most widely used writing systems, spread by Phoenician merchants across the Mediterranean world, where it evolved and was assimilated by many other cultures. The Paleo-Hebrew alphabet was directly derived from Phoenician. The Aramaic alphabet 10840–1085F , a modified form of Phoenician, was the ancestor of modern Arabic script. The Modern Hebrew script 0590–05FF is a stylistic variant of the Aramaic script. The Greek alphabet 0370–03FF (and by extension its descendants such as the Latin 0000–007F , the Cyrillic 0400–04FF , and the Coptic 2C80–2CFF ) was a direct successor of Phoenician, and the first full alphabet (including vowels, rather than just consonants), having evolved certain letter values to represent vowels. As the letters were originally incised with a stylus, most of the shapes are angular and straight, although more cursive versions are increasingly attested in later times, culminating in the Neo-Punic alphabet of Roman-era North Africa. Phoenician was usually written from right to left, although there are some texts written in boustrophedon. In 2005, UNESCO registered the Phoenician alphabet into the Memory of the World Programme as a heritage of Lebanon.