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
Serial comma Serial comma In English language punctuation, a serial comma or series comma (also called an Oxford comma or a Harvard comma) is a comma placed immediately before the coordinating conjunction (usually "and" or "or") in a series of three or more terms. For example, a list of three countries might be punctuated either as "France, Italy,and Spain" (with the serial comma), or as "France, Italyand Spain" (without the serial comma). Opinions among writers and editors differ on whether to use the serial comma, and usage also differs somewhat between regional varieties of English. In American English, not using a serial