Dnieper Balts

[2] In 1962, the Russian linguists Vladimir Toporov and Oleg Trubachyov, in their work, the "Linguistic analysis of the hydronyms of the Upper Dnieper region" (Russian: Лингвистический анализ гидронимов Верхнего Поднепровья), demonstrated that more than a thousand names in the Dnieper basin were of Baltic origin, due to their morphology and etymology.

[10] Moshchiny culture is considered to be the ancestor of the Eastern Galindians, who lived in the lands near Moscow and within the Protva river basin.

[1] In the 7th century, the Slavs, that previously only lived in Right-bank Ukraine, started invading the Baltic lands in the eastern Dnieper basin.

[4] Since the 7th and 8th centuries, the linguistic and cultural Slavicisation of Dnieper Balts was accelerated by the conversion of the multilingual tribes living in Ruthenia to Eastern Orthodoxy.

[11] Some researchers believe that after the Christianization of Kievan Rus' in 988, part of the Dnieper Balts retreated westwards, eventually merging into Lithuanians and Latgalians.

Baltic archaeological cultures in the Iron Age from 600 BC to 200 BC with Dnieper-Dvina culture in brown
Baltic archeological cultures (in purple) at the end of 3rd century to beginning of 4th century between Slavic (in brown) and Finno-Ugric archeological cultures (in green)
Baltic archeological cultures (in purple) at the end of 5th century to 7th century between Slavic archeological cultures (in light brown)
Eastern Europe at the end of 9th century to beginning of 10th century with the last remaining Dnieper Baltic inhabited area around the modern-day Moscow cut off from the rest of the Baltic people by Krivichs