947 antiquities art balto-slaviclinguisticunity belarus bread central christianityandculture churchhistory civilization congresses eastern encyclopedias ethnicidentity ethnicity ethnicrelations ethnology etymology europe excavations(archaeology) folklore geographical germany history humanevolution indo-europeanlanguages indo-europeans kashubes languageandculture languagesincontact marriagecustomsandrites middleages minorities mythology names oldnorseliterature onomastics origin paganism panslavism polish polishphilology post-communism proto-slaviclanguage relations religion ritesandceremonies russia rusʹ(theslavicword) slavic slavicantiquities slaviccountries slaviclanguages slavicphilology sociallifeandcustoms sorbs sources ukraine western yugoslavia