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Origin and history

The archaeological site of the Nasium sanctuary corresponds to the former capital of the Leuques, a Gallic people of eastern France. Founded at the end of the first century BC near the confluence of the Ornain and Barboure, this Gallo-Roman agglomeration extended over 120 hectares, competing with Metz in regional importance. Its development was linked to the Celtic oppidum of Boviolles, whose political and economic functions it inherited after the Roman conquest. The excavations revealed an orthonormous urban network, temples (such as the Mazeroia fanum, dated between 20 and 5 BC), and traces of a strategic ford on the Ornain.

The climax of Nasium came under the reigns of Augustus and Tiberius, during which time the city probably obtained Latin law, as evidenced by honorary inscriptions and Flavian epitaphs. The site was home to a prosperous craft (stone sculptures of Savonnières, Italian-Gaulian sigilla) and an active trade, attested by various amphoras and currencies. In the second century, Ptolemy still cited it as a major city of the Leuques, before its progressive decline, marked by topographical modifications (circumstances of canals, deviation of Ornain) from the eighth century.

The remains of Nasium, distributed between Naix-aux-Forges and Saint-Amand-sur-Ornain, include thermal baths, a forum, and necropolises. The site was classified as a Historic Monument in 1862, and most artifacts are preserved at the Barrois Museum of Bar-le-Duc. Recent prospecting (geophysics, rescue excavations) have confirmed the pre-Roman occupation of the area, as well as ambitious urban planning, aligned with the Roman roads Reims-Toul-Metz and Naix-Langres. The Gallo-Latin inscription discovered in 2004 underscores the symbolic importance of the ford, the pivot of regional exchanges.

The topography of Nasium, at the bottom of a valley surrounded by limestone hillsides, influenced its development. Geological layers (upper Jurassic) provided building materials, such as Savonnières stone, used for sculptures. The name of the city evolved over the centuries (Nasion, Nasie, Naix), reflecting the political transformations of Lorraine. Today, the site, though fragmented by modern infrastructures (channel from the Marne to the Rhine, railway track), remains a key testimony of Romanization in Gaul Belgium.

The 19th century excavations, conducted by C.F. Denys, revealed thermal baths and temples, while the recent countryside (1969–1982, 1998–2000) specified the extent of the agglomeration (65 ha in the urban heart). Archaeological furniture — leuk coins, sigillated ceramics, tools — attests to a diversified economy linked to agriculture, crafts and river transit. The decline of Nasium, poorly documented, could be linked to the Roman administrative reorganization or hydrographic changes, since the Ornain changed its course since ancient times.

The Nasium site illustrates the transition from Iron Age to Romanization, with a visible cultural stratification: Celtic oppidum, planned Augustian city, and a monumental Tibetan-Claudian agglomeration. Its early ranking (1862) and continuous studies (numismatic, epigraphy) make it a laboratory for understanding urban dynamics in East Gaul. The written sources (Ptolemy, Table de Puisinger) and recent discoveries (gallo-latin inscription) complement this historical puzzle, where local myths and scientific data cross.

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