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
Braille pattern dots-6 Braille pattern dots-6 The Braille pattern dots-6 ( ) is a 6-dot braille cell with the bottom right dot raised, or an 8-dot braille cell with the lower-middle right dot raised. It is represented by the Unicode code point U+2820, and in Braille ASCII with a comma:, . In unified international braille, the braille pattern dots-6 is used as a formatting, punctuation, accent sign, or otherwise as needed. Related to Braille pattern dots-6 are Braille patterns 67, 68, and 678, which are used in 8-dot braille systems, such as Gardner-Salinas and Luxembourgish Braille. In the Japanese kantenji braille, the standard