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
Thai and Lao Braille different print diacritic in short ເ◌ຶອ "eua" and ເ◌ັຍ "ia". The short sign ( ็) is also used for the rarer virama ( ฺ). Numbers are the same as in other braille alphabets, though dot six is prefixed to the to specify that they're Thai or Lao digits. Thus, a sequence of numbers begins with . Single (though not paired) clause-final punctuation may introduced with , but is otherwise as in English Braille. There is some variability in the use of the to mark stop/period, comma, and the exclamation point. Thai Braille seems to use for the comma, while Lao