 "Kalos" names are also found as graffiti on walls, the most abundant example being the find on Thassos of 60 "kalos" inscriptions carved on rock dating from the 4th century.The non-epigraphic literary evidence consists of two references in Aristophanes.Both of these instances, however, praise the "demos" (the citizenry as a whole) rather than any individual, and suggest the public performance role of the "kalos" tag.