A new video about the history and evolution of the Proto-Slavic vowels *ь and *ъ, known as yers, now extinct. Much information about these vowels remains uncertain, yet they played a significant role in the development of the various Slavic languages.

https://www.youtube.com/watch?v=bdhG0DGt-uU

#SlavicLanguages ​​#linguistics #diachrony #phonology #Russian #Ukrainian #Polish #Czech #Slovak #Slovene #Croatian #Serbian #Madedonian #Bulgarian