{"note":"The ground of the Slavic peoples the atlas files as states: approximate, drawn from the rivers their sources name and set against the maps below. Built by scripts/build_tribes.py from data/tribe_areas.json; `open: 1` is an outline inside a state whose border holds the people's seat that year.","credit":{"seikoen":{"title":"European territory inhabited by East Slavic tribes (700-850)","author":"SeikoEn","file":"https://commons.wikimedia.org/wiki/File:East_Slavic_tribes_peoples_8th_9th_century.jpg","licence":"CC BY-SA 3.0"},"kollath":{"title":"Slavic tribes in VII-IX century","author":"Ádám Kolláth","file":"https://commons.wikimedia.org/wiki/File:Slavic_tribes_in_VII-IX_century.jpg","licence":"CC BY-SA 4.0"}},"basis":{"Q571813":{"basis":"Jordanes and Procopius put the Antes between the Dniester and the Dnipro, where the Black Sea curves; the Penkovka culture, theirs by most readings, runs through the forest-steppe east to the Siverskyi Donets.","read_against":[],"confidence":"low"},"Q1257426":{"basis":"Jordanes: the Sclaveni live from Noviodunum on the Danube to the Dniester, and northward as far as the Vistula; the Prague-Korchak 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