Location
The Batavi were mentioned by Julius Caesar in his commentary Commentarii de Bello Gallico, as living on an island formed by the Rhine River after it splits, one arm being the Waal the other the Lower Rhine/Old Rhine (hence the Latin name Insula Batavorum, "Island of the Batavi"). Tacitus reports that before their arrival the area had been "an uninhabited district on the extremity of the coast of Gaul, and also of a neighbouring island, surrounded by the ocean in front, and by the river Rhine in the rear and on either side" (Tacitus, Historiae iv.12). This view, however, is contradicted by the archeological evidence, which shows continuous habitation from at least the third century BC onward.
The strategic position, to wit the high bank of the Waal—which offered an unimpeded view far into Germania Transrhenana (Germania Beyond the Rhine)—was recognized first by Drusus, who built a massive fortress (castra) and a headquarters (praetorium) in imperial style. The latter was in use until the Batavian revolt.
Archeological evidence suggests they lived in small villages, composed of six to 12 houses in the very fertile lands between the rivers, and lived by agriculture and cattle-raising. Finds of horse skeletons in graves suggest a strong equestrian preoccupation. On the south bank of the Waal (in what is now Nijmegen) a Roman administrative center was built, called Oppidum Batavorum. An Oppidum was a fortified warehouse, where a tribe's treasures were stored and guarded. This centre was razed during the Batavian Revolt.
The Batavi (the name is believed to derive from a West Germanic root also present in "better" (possibly meaning "superior men")) moved into the Betuwe in the late 1st century BC. The previous inhabitants of the area were Celtic-speaking Gauls, as evidenced by the two Latinised Celtic names for their chief town: Batavodurum and Noviomagus (Nijmegen, Neth). It is unclear whether the existing inhabitants were subjugated, with the Batavi forming a ruling elite, or simply displaced. For this reason it is also uncertain whether the Batavi remained Germanic-speaking or adopted the Belgic Gallic tongue of the indigenes.
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