The East Slavic languages constitute one of three regional subgroups of Slavic languages, currently spoken in Eastern Europe. It is the group with the largest numbers of speakers, far out-numbering the Western and Southern Slavic groups. The existing East Slavic languages are Belarusian, Russian and Ukrainian; Rusyn is considered to be either a separate language or a dialect of Ukrainian.
The East Slavic languages descend from a common predecessor, the language of the medieval Kievan Rus' (9th to 13th centuries). All these languages use the Cyrillic script, but with particular modifications....LESS