For centuries, scholars have not been able to locate
Vicus Helena, nor been able to determine the precise date of the battle. In
The History of the Decline and Fall of the Roman Empire Volume VI (1789),
Edward Gibbon stated that 'both the name and the place are discovered by modern geographers at
Lens'. Writing for the
Magasin encyclopédique in 1797, Guilmot claimed to have discovered it as the village of
Évin, on the road between Tournai and Arras. Alexandre-Joseph-Hidulphe Vincent published an essay in 1840, arguing that neither Lens nor
Hesdin (two popular candidates in his time) was plausible, but that
Allaines near the
Mont Saint-Quentin and the town of
Péronne was the lost
Vicus Helena. Hubert le Bourdellès (1984) suggested
Saint-Amand Abbey, which used to be known as
Elnon(e). Tony Jaques (2007) went with
Hélesmes in the year 431. De Boone (1954) connected Sidonius' reference to a frozen
Loire river to the exceptionally harsh winter of 442–3 mentioned by the
Annals of
Marcellinus Comes, but Lanting & van der Plicht (2010) rejected this, as Marcellinus doesn't mention any harsh winter in Gaul, and focused mostly on the Eastern Roman Empire; instead, the latter two focused on the military career of Majorian (Sidonius called him a
iuvenis or 'young man' in 458, while he had left active military service before 454, suggesting a birth around 420), concluding 445–450 to be the most likely period for the battle. Dierkens & Périn (2003) noted that Majorian had defeated the Bagaudae and freed Tours just before the battle of Vicus Helena; they dated the former two events (and therefore Vicus Helena as well) to 448, and endorsed the Hélesmes hypothesis. Alexander O'Hara (2018) suggested 'in around 448' at 'an unidentified site in the Artois', positing that it may be connected to the destruction of Arras around that time as well, although it is unknown whether Arras was sacked by Huns or Franks. == Primary sources ==