Aristophanes of Byzantium needed to complete each fragment of text when reading aloud (not to comply with rules of grammar, which were not applied to punctuation marks until thousands of years later). For a short passage (a "komma"), a "stigmḕ mésē" dot was placed mid-level (·). This is the origin of the modern comma punctuation mark, and its name. For a longer passage (a "kolon"), a "hypostigmḗ" dot was placed level with the bottom of the text (.), similar to a modern colon or semicolon, and for very long pauses ("periodos"), a "stigmḕ teleía" point near the top of the line of text
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