Comment by kjellsbells
Comment by kjellsbells 10 months ago
Reminds me of Vietnamese and its use of diacritics to mark tones. Vietnamese also uses diacritical markings to differentiate some vowels.
https://en.wikipedia.org/wiki/Vietnamese_phonology#Tone?wpro...
There is speculation that the polytonic accents in Greek (which were a late addition to the alphabet, incidentally), originally were tone markers. ΄ represented a rising tone, ` a falling tone and ῀ a rising then falling tone.