Modern Hebrew languages that it is genealogically a hybrid with Indo-European. These theories have not been met with general acceptance, and the consensus among a majority of scholars is that Modern Hebrew, despite non-Semitic influences, can correctly be classified as a Semitic language. Modern Hebrew is written from right to left using the Hebrew alphabet, which is an abjad, or consonant-only script of 22 letters based on the "square" letter form, known as "Ashurit" (Assyrian), which was developed from the Aramaic script. A cursive script is used in handwriting. When necessary, vowels are indicated by diacritic marks above or below the letters
Hebrew alphabet Hebrew letters started being used to denote numbers in the late 2nd century BC, and performed this arithmetic function for about a thousand years. Nowadays alphanumeric notation is used only in specific contexts, e.g. denoting dates in the Hebrew calendar, denoting grades of school in Israel, other listings (e.g. שלב א׳, שלב ב׳ – "phase a, phase b"), commonly in Kabbalah (Jewish mysticism) in a practice known as gematria, and often in religious contexts. The numbers 500, 600, 700, 800 and 900 are commonly represented by the juxtapositions ק״ת, ר״ת, ש״ת, ת״ת, and ק״תת respectively. Adding a geresh ("׳") to