Proto-Slavic (abbreviated PSl., PS.; also called Common Slavic or Common Slavonic) is the unattested, reconstructed proto-language of all Slavic languages.It represents Slavic speech approximately from the 2nd millennium B.C. through the 6th century A.D. As with most other proto-languages, no attested writings have been found; scholars have reconstructed the …

The East Slavic languages constitute one of the three regional subgroups of Slavic languages.These languages are currently spoken natively throughout Eastern Europe and extend eastwards to Siberia and the Russian Far East; while being also spoken as a lingua franca in many regions of Caucasus and Central Asia.Speakers of East Slavic languages far out-number the …