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Heritage classified

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Origin and history

Argentomagus, located on the plateau des Mersans in Saint-Marcel (Indre, Centre-Val de Loire region), was originally an oppidum of the Gaulish people of the Bituriges Cubes. Its name, derived from the Gallic Argantomagos ("money market"), reflects its key economic role, linked to monetary and metal trade. The strategic position of the site, between the Creuse and major roads, made it a commercial crossroads and a control point for the Romans after the conquest around 50 BC. The site reached its peak in the second and third centuries, during which time monumental public buildings were built.

The remains testify to this prosperity: a theatre that can accommodate 6,000 to 7,000 spectators, thermal baths, a Roman bridge, temples, and a monumental fountain. A necropolis and habitats, such as the house of Quintus, complete the picture of an organized agglomeration. The excavations, initiated in 1820 after a first description in 1566 by Jean Chaumeau, revealed objects of the daily (stituettes, pottery, coins) exhibited since 1990 at the local archaeological museum. The Gallo-Latin inscription " VERGOBRETOS READDAS" on an olla illustrates the religious and political practices of the Bituriges.

The site was listed as a Historic Monument in 1976 for its Gallo-Roman remains, then registered in 1990. Archaeological research, particularly that carried out by Françoise Dumasy between 1989 and 1994, has helped to reconstruct the urban evolution of Argentomagus. The link between this site and other Argentomagus in Gaul (as in Orne or Sarthe) suggests a network of marketplaces associated with mining, including tin and gold, as suggested by historian Jean-Marie Pailler.

The topography of the site, on the right bank of the Creuse and near Argenton-sur-Creuse, explains its logistical importance. L-oppidum, surrounded by ramparts, dominated a plain conducive to exchanges, while the presence of sanctuaries (such as that dedicated to Mars Mullo in symmetrical sites) emphasized its integration into a Gallic religious and economic system then Gallo-Roman. Archaeological discoveries continue to shed light on the role of Argentomagus as a political, religious and commercial centre between the Celtic world and the Roman Empire.

The archaeological museum of Saint-Marcel, opened in 1990, preserves and exhibits artifacts from excavations, including toys, wall decorations and coins. These objects, like the famous olla, bear witness to daily life, beliefs (cult to the Roman and Gaulish gods) and cultural exchanges. Temporary exhibitions, such as "Thank God! Devotes and offerings in Roman Gaul", highlight this unique heritage, classified and protected for its historical and scientific value.

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