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
Comma the comma is used to denote Logical Conjunction ("and"). The comma-separated values (CSV) format is very commonly used in exchanging text data between database and spreadsheet formats. The comma is used as a diacritic mark in Romanian under the "s" ("Ș", "ș"), and under the "t" ("Ț", "ț"). A cedilla is occasionally used instead of it, but this is technically incorrect. The symbol "d̦" ("d" with comma below) was used as part of the Romanian transitional alphabet (19th century) to indicate the sounds denoted by the Latin letter "z" or letters "dz", where derived from a Cyrillic "ѕ" (). The