Comma the purpose of the comma. There are also a number of comma-like diacritics with "COMMA" in their Unicode names. These do not serve a punctuation function. A comma-like low quotation mark is also available (shown below; raised single quotation marks are not shown). Various other Unicode characters combine commas or comma-like figures with other characters, and are not shown here. In the 3rd century BC, Aristophanes of Byzantium invented a system of single dots ("distinctiones") that separated verses (colometry) and indicated the amount of breath needed to complete each fragment of the text when reading aloud. The different lengths were
Punctuation Rs. 20/- or Rs. 20/= implies 20 rupees whole. Thai did not use punctuation until the adoption of punctuation from the West in the 20th century. Blank spaces are more frequent than full stops or commas. "Further information: Armenian punctuation, Chinese punctuation, Hebrew punctuation, Japanese punctuation and Korean punctuation." In 1966, the French author Hervé Bazin proposed a series of six innovative punctuation marks in his book "Plumons l'Oiseau" ("Let's pluck the bird", 1966). These were: An international patent application was filed, and published in 1992 under Work Order (WO) number WO9219458, for two new punctuation marks: the "question comma"