Punctuation vowel of the word. Arabic, Urdu, and Persian—written from right to left—use a reversed question mark: , and a reversed comma: . This is a modern innovation; pre-modern Arabic did not use punctuation. Hebrew, which is also written from right to left, uses the same characters as in English, and . Originally, Sanskrit had no punctuation. In the 17th century, Sanskrit and Marathi, both written using Devanagari, started using the vertical bar to end a line of prose and double vertical bars in verse. Punctuation was not used in Chinese, Japanese, and Korean writing until the adoption of punctuation from
Comma the comma is used to denote Logical Conjunction ("and"). The comma-separated values (CSV) format is very commonly used in exchanging text data between database and spreadsheet formats. The comma is used as a diacritic mark in Romanian under the "s" ("Ș", "ș"), and under the "t" ("Ț", "ț"). A cedilla is occasionally used instead of it, but this is technically incorrect. The symbol "d̦" ("d" with comma below) was used as part of the Romanian transitional alphabet (19th century) to indicate the sounds denoted by the Latin letter "z" or letters "dz", where derived from a Cyrillic "ѕ" (). The