Source of the Danube
As early as 1847 the following definition can already be found in the "Universallexikon des Großherzogtums Baden" (Universal Lexicon of the Grand Duchy of Baden): “Danube, the biggest river of Germany, rises at the Martinskapelle in a wild and lonely area of the Black Forest, is called Brege at its origin and forms the river Danube in Donaueschingen where it is unified with the Brigach." (German original: „Donau, der größte Fluß Deutschlands, entspringt bei der Martinskapelle in einer wilden und einsamen Gegend des Schwarzwaldes, heißt am Anfang Brege… und bildet erst in Donaueschingen, wo sie sich mit der Brigach vereinigt, die Donau.“)
Dnieper
In the three countries through which it flows it has essentially the same name, albeit pronounced differently:The river is mentioned both by the Ancient Greek historian Herodotus in the 5th century BC as (), as well as by Strabo; this name is Scythian (cf. Proto-Iranian "Hurú-stáHnam") or local population contemporary with the Herodotus' lifespan and translates as "wide land", referring most likely to the Pontic steppes (Ukrainian steppes). . Unless Icelandic Snorre Skald Sturlasson, in Ynglinga saga, meant Danube, which is rather unlikely, wrote that this river run through Great Sviþjoð (Great Sweden), and separate Asia from Europe (also named Enea, from the eponymous Aeneas). It is, Snorre explains, in his time called Tanais, in earlier times Tanakvisl, and Vanakvisl. This is the realm of the Vanir. To the east is Asia, and the realm of the Æsir. In Snorre Sturlasons perspective ancient peoples that were either later deified, or who practiced deification of their rulers, aka apotheosis.