North Gaul and Rætia
Transcription
North Gaul and Rætia
DAVID WIGG-WOLF North Gaul and Rætia The last decade has seen a great deal of work being done on the Late Iron Age/Early Roman transition in Germany and neighbouring countries. In particular, excavations at Kalkriese, almost certainly the site of the defeat of P. Quinctilius Varus and three Roman legions in the Teutoburger Forest in AD 9, and the ‘proto’-town at Waldgirmes, as well as the individual projects of the ‘Romanisation’ research programme have not only led to an increase in the quality and quantity of material available, they have also resulted in a whole series of new insights into the history of the region1. The aim of this brief summary is to draw attention to some numismatic aspects of this recent work. The last decades BC, and the first decades AD in North Gaul offer an ideal opportunity to study the interaction of two coin-using societies, as the Late La Tène culture came under the influence of Rome. A large body of material is available for study, in particular from the numerous military camps of the Julio-Claudian period, many of which are well-dated, short-lived sites, offering a succession of windows onto the development of the pool of coin available to be lost or deposited in the military zone along the Rhine. This picture is complemented by native sites, in particular the Titelberg oppidum and the sanctuary and oppidum at the Martberg, where intensive excavations have taken place2 (fig. 1). 1. The arrival of Roman coin In the first three or four decades subsequent to Caesar’s conquest of Gaul Roman coin played almost no part in coin use in N. Gaul. Large quantities of Roman coin only started to arrive in the area together with the Roman army when it was moved up to the Rhine in preparation for Augustus’ German campaigns from c. 15 BC onwards. This is reflected in the coin found in a series of ditch fillings at the Titelberg and Martberg: Roman coin is absent in layers deposited in the years immediately after the conquest (fig. 2)3. 1. Kalkriese: Berger, F.: Kalkriese 1. Die römischen Fundmünzen, Röm.-germ. Forsch. 55 (Mainz 1996); Schluter, W.: The battle at the Teutoburg Forest: archaeological research at Kalkriese near Osnabrück. In: Creighton J. D.; Wilson, R. J. A. (Eds.): Roman Germany, Studies in Cultural Interaction. Journal Roman Arch. suppl. ser. 32 (Portsmouth 1999) 125-159; see also various contributions in Schluter, W. und Wiegels, R. (Eds.): Rom, Germanien und die Ausgrabungen von Kalkriese. Internationaler Kongress der Universität Osnabrück und des Landschaftsverbandes Osnabrücker Land e.V. vom 2. bis 5. September 1996. Osnabrücker Forschungen zu Altertum und Antike-Rezeption 1 (Osnabrück 1999); Wiegels, R. (Ed.): Die Fundmünzen von Kalkriese und die frühkaiserzeitliche Münzprägung. Akten des wissenschaftlichen Symposiums in Kalkriese, 15.-16. April 1999. Osnabrücker Forschungen zu Altertum und AntikeRezeption 3 (Möhnsee 2000) - Waldgirmes: Becker, A. und Rasbach, G.: Der spätaugusteische Stützpunkt Lahnau-Waldgirmes. Vorbericht über die Ausgrabungen 1996-1997. Germania 76, 1998, 673-692; Von Schnurbein, S.; Wigg, A. und Wigg, D. G.: Ein spätaugusteisches Militärlager in Lahnau-Waldgirmes (Hessen). Bericht über die Grabungen 1993-1994. Germania 73, 1995, 337367; Becker, A. und Rasbach, G.: Vortrag zur Jahresitzung 2001 der Römisch-Germanischen Kommission. Waldgirmes. Eine römische Stadtgründung im Lahntal. Ber. RGK 82, 2001, 591-610 ‘Romanisation’ programme: Krausse, D.: Romanization in the Middle Rhine and Moselle region: new evidence from recent excavations in Luxembourg, Rhineland-Pfalz and Saarland, in: Creighton/Wilson (ibid.) 54-70; Wigg, A.: Confrontation and interaction: Celts, Germans and Romans in the Central German Highlands, in: Creighton/Wilson (ibid.) 35-53; Haffner, A. und Von Schnurbein, S. (Eds.): Kelten, Germanen und Römer im Mittelgebirgsraum zwischen Luxemburg und Thüringen. Akten des Internationalen Kolloquiums zum DFG-Schwerpunktprogramm “Romanisierung” in Trier vom 28. bis 30. September 1998. Kolloquien zur Vor- und Frühgeschichte 5 (Bonn 2000). 2. Titelberg: Metzler, J.: Das treversiche Oppidum auf dem Titelberg (G.-H. Luxemburg). Zur Kontinuität zwischen der spätkeltischen und der frührömischen Zeit in Nord-Gallien, Dossiers arch. Mus. Nat. Hist. Art 3 (Luxemburg 1995) - Martberg: Thoma, M.: Der gallo-römische Kultbezirk auf dem Martberg bei Pommern an der Mosel, Kr. Cochem-Zell, in: Haffner/von Schnurbein (note 1) 447-483; Thoma, M.: Häuser der Götter. Archäologie in Deutschland, 2001/3, 20-24; Wegner, H.-H.: Der Martberg bei Pommern an der Mosel: Eine befestigte Höhensiedlung der Kelten im Gebiet der Treverer, Archäologie an Mittelrhein und Mosel 12 (Koblenz 1997); Wigg, D. G.: Der Beitrag des Martbergs zur eisenzeitlichen Numismatik, in: Haffner/von Schnurbein (note 1) 485-496; Wigg, D. G.: The Martberg on the Lower Mosel and the development of the coinusing economy in North Gaul in the late Latène and early Roman period, in: Kluge, B. / Weisser, B. (Eds.), XII. Internationaler Numismatischer Kongress Berlin 1997. Akten-Proceedings-Actes (Berlin 2000) 447-452. 3. Wigg (note 2; Beitrag) 492; Wigg, D. G.: The development of the monetary economy in N. Gaul in the late La Tène and early Roman periods, in: Creighton/Wilson (note 1) 99-124 esp. 105-108 and fig 4.6. 995 DAVID WIGG-WOLF 2. The role of Iron Age coins on military sites During the early and mid-Augustan period nonRoman coins can feature prominently on military sites, and mix freely with Roman coin. These Iron Age coins can be divided into two main groups; non-local, and local. On the one hand we find large numbers of coins from areas in or adjacent to the military zone: the commonest of these are the bronze/billon rainbow cups (dlT 9441), and above all ‘Aduatuci’ or Avaucia bronzes (Scheers 217), both of which were struck on the Lower Rhine4. The latter can account for up to one third of the Augustan coin at some military sites (e.g. Haltern). It has been suggested that these may have been used to pay native troops serving with the Roman army, and therefore provide an indication of the origin of troops serving at particular camps5. However, the Aduatuci coins are too wide-spread for this to have been the case; rather they formed an integral part of the circulation pool on both the Lower and Middle Rhine. Some of the coins may indeed have arrived with auxiliaries from the Lower Rhine, but trade and other contacts will also have been involved. Other coinages from more distant regions were clearly brought into the area by soldiers transferred from elsewhere, for example from South/Central Gaul or Spain6. But in the case of some coinages from neighbouring regions it is unclear whether they arrived in the military zone with soldiers, or as a result of other mechanisms such as trade. For example, a number of bronze coins of the Treveri (Scheers 30a) have been found in camps along the Rhine, beyond the main area of circulation of this coinage (fig. 3). 3. The spectrum of Roman coin - bronze Due to the short-lived nature of many Julio-Claudian military sites we have a very good picture of how the pool of coin in circulation developed (fig. 4)7. The most significant feature is that the spectrum changes rapidly: at Oberaden (c. 11-8/7 BC) coins from Nemausus (RIC 155-157, struck c. 20-10 BC) account for nearly 98% of the bronze found; at Waldgirmes (abandoned AD 9), and in particular at the battlefield of Kalkriese (AD 9) these have been replaced by the first series of altar coins from Lugdunum (RIC 230, 7-3 BC). These have, in turn, 4. Scheers 217: Scheers, S. : Frappe et circulation monétaire sur le territoire de la future Civitas Tungrorum. Rev. Belge Num. 142, 1996, 5-51 esp. 13-25 - dlT 9441: Roymans, N.: The Lower Rhine Triquetrum coinages and the Ethnogenesis of the Batavi, in: Grünewald T. und Schalles, H.-J. (Eds.): Germania Inferior. Ergänzungsbände zum Reallexikon der Germanischen Altertumskunde 28 (Berlin/New York 2001) 93-145; Schulze-Forster, J.: Der Dünsberg und die jüngsten keltischen Münzen in Hessen, in: Metzler, J. und Wigg-Wolf, D. G. (Eds.): Die Kelten und Rom: neue numismatische Forschungen (Fond de Gras/Titelberg, Luxemburg, 30.4. - 3.5.1998). Studien zu Fundmünzen der Antike 19 (Mainz 2004 [in print]) - on Iron Age coin at Roman sites in general see: Heinrichs, J.: Augusteische Truppen und Bildung eines Geldumlaufs im niedergermanischen Bereich, in: von Hesberg, H. (Ed.): Das Militär als Kulturträger in römischer Zeit (Köln 1999) 147-187; Heinrichs, J.: Ubische und batavische Münzen im Ruhr-Lippegebiet, in: Hopp D. und Trümpler, C. (Eds.): Die frühe römische Kaiserzeit im Ruhrgebiet. Kolloquium des Ruhrlandmuseums und der Stadtarchäologie / Denkmalbehörde in Zusammenarbeit mit der Universität Essen (Essen 2001) 25-38; Wigg, D. G.: The function of the last Celtic coinages in Northern Gaul, in: King, C. E. and Wigg, D. G. (Eds.): Coin Finds and Coin Use in the Roman World. The Thirteenth Oxford Symposium on Coinage and Monetary History 25.-27.3.1993. Studien zu Fundmünzen der Antike 10 (Berlin 1996) 415-436 esp. 415-424; Wigg, D. G.: Die Rolle des Militärs bei der Münzversorgung und Münzgeldwirtschaft am Rhein in der frühen Kaiserzeit, in: Schluter/Wiegels (note 1) 327-346 esp. 328-333; Wigg (note 3; Development) esp. 111-113; Wigg, D. G.: Die Stimme der Gegenseite? Keltische Münzen und die augusteische Germanienpolitik, in: T. Grünewald/S. Seibel (Eds.), Kontinuität und Diskontinuität. Germania inferior am Beginn und am Ende der römischen Herrschaft. Beiträge des deutsch-niederländischen Kolloquiums in der Katholieke Universiteit Nijmegen (27. bis 30.06.2001). Ergänzungsbände zum Reallexikon der Germanischen Altertumskunde 35 (Berlin/New York 2003) 218-241. 5. Chantraine, H.: Keltische Münzen in frühen rheinischen Legionslagern, in: Grasman G.; Jansen W. und Brandt, M. (Eds.): Keltische Numismatik und Archäologie. Veröffentlichung der Referate des Kolloquiums Keltische Numismatik vom 4. bis 8. Februar 1981 in Würzburg. BAR int. ser. 200 (Oxford 1984) 11-19; Furger-Gunti, A.: Früher Auxilien am Rhein - keltische Münzen in römischen Militärstationen. Arch. Korrbl. 11, 1981, 231-246; Wolters, R.: Keltische Münzen in römischen Militärstationen und die Besoldung römischer Hilfstruppen in spätrepublikanischer und frühaugusteischer Zeit. Tyche 3, 1988, 261-272. 6. García-Bellido, M. P.: Troop movements and numismatics: Spanish legions in German camps, in: Kluge/Weisser (note 2) 524-530; GarcíaBellido, M. P.: Las monedas hispánicas de los campamentos del Lippe ¿Legio Prima (antes Augusta) en Oberaden? Bóreas 19, 1996, 247-260; García-Bellido, M. P.: The historical relevance of secondary material, in: Wiegels (note 1) 121-137; Hanel, N.: Vetera I: die Funde aus den römischen Lagern auf dem Fürstenberg bei Xanten. Rheinische Ausgrabungen 35 (Köln/Bonn 1995) 19 with Tabelle 1. 7. Heinrichs, J.: Überlegungen zur Versorgung augusteischer Truppen mit Münzgeld. Ein neues Modell und daraus ableitbare Indizien für einen Wandel in der Konzeption des Germanenkriegs nach Drusus, in: Mooren, L. (Ed.): Politics, Administration and Society in the Hellenistic and Roman World. Proceedings of the International Colloquium, Bertinoro 19-24 July 1997. Studia Hellenistica 36 (Leuven 2000) 155-214; van Heesch, J.: Augustan bronze coins in the north-west of Gaul, in: Schluter/Wiegels (note 1) 347-361; van Heesch, J.: Les monnaies augustéennes sur quelques sites Belges. Contribution à l’étude de la chronologie de l’occupation romaine du nord de la Gaule, in: Lodewijckx, M. (Ed.): Archaeological and Historical Aspects of Western-European Societies. Album Amicorum André van Doorselaer. Acta Arch. Lovaniensia Monographiae 8 (Leuven 1996) 95-107; van Heesch, J.: Some considerations on the circulation of Augustan and Tiberian bronze coins in Gaul, in: Wiegels (note 1) 153-170; Wigg (note 4; Rolle) 333ff. with fig. 4; Wigg (note 3; Development) 408 ff. with fig. 4.7. 996 NORTH GAUL AND RÆTIA almost vanished at the Tiberian site TreburGeinsheim8. Enormous quantities of fresh bronze coin must have been arriving in the region, as the old coin was spent and moved out of the camps and the military zone, so producing this rapid turn-over(fig. 4). 4. The spectrum of Roman coin - silver This picture contrasts with that of the silver coin as reflected in a series of hoards, as well as the stray finds from sites like Haltern and Kalkriese. For example in the silver hoards from Kalkriese old Republican silver can account for up to 75% of the total9. The pool of silver was not being replaced as quickly as was the case for the bronze, suggesting that little new silver was reaching the area. This in turn suggests that, however it was calculated on paper, Roman soldiers were in fact receiving their pay in new bronze. An alternative interpretation would be that they were receiving old silver, but a number of considerations make this unlikely. Bronze was frequently countermarked, indicating that it was definitely being paid out by officials such as military commanders, whereas silver was not. Yet were silver the only medium being used for military pay then we should expect it to have been countermarked also10. only reached N. Gaul in large numbers in the early Tiberian period, and indeed many of them have Tiberian countermarks (e.gg. CÆSAR, TIBAVG, etc.). This unusual, and –in contrast to the Republican asses– sudden and large-scale movement of coin into the area is most likely linked to the large quantities of coin required to pay Augustus’ legacy to the troops, which Germanicus doubled in order to quell a mutiny in the Rhine army. We know that these coins were stockpiled by Augustus well before his death13. R. Wolters has suggested that the coins concerned were in fact the Caius and Lucius Cæsares denarii (RIC 207-212), but if the soldiers were indeed normally paid in bronze, as was argued above, then the moneyers’ issues are a likely candidate14. What is more, these are just the coins that we would expect Augustus to have stockpiled in Rome a decade or more before his death.(fig. 5). 6. Native coin use The last native coinages in N. Gaul were probably struck in the Augustan period: for example Scheers 217, which was struck in the last decade BC15. In the hinterland of the Rhine frontier, where Roman coin was slow to arrive, these coinages continued in use into the second half of the first century AD. 5. Unusual coin movements Remarkably, at Trebur-Geinsheim the first series of altar coins from Lugdunum are replaced not only by coins of the second altar series, but also by much older pieces: halved Republican asses, and moneyers’ issues from the mint at Rome. The Republican pieces are extremely worn, are more common on the Upper than the Lower Rhine, and their numbers continue to increase into the Claudian period. The reasons for this phenomenon are unclear: is it a reflection of the gradual infiltration of these coins into the area from N. Italy, or the result of an intentional coin supply policy?11 The circumstances of the arrival of the moneyers’ issues can be identified more exactly. At sites in N. Gaul where settlement continued throughout the Julio-Claudian period asses of the series struck in Rome in 7-6 BC (RIC 427-442) are the commonest moneyers’ coins12. But at Haltern (abandoned AD 9) and AugsburgOberhausen (abandoned soon after AD 9?) this series is rare (fig. 5). It would seem that these moneyers’ issues 8. For a similar composition see van Heesch, J. (#in this section#), hoard VII. 9. Cf. Berger (note 1) 16-24. 10. Van Heesch (note 7; Considerations) 163-166 argues for soldiers being paid in a mixture of precious metal and bronze; Wolters, R.: Bronze, silver or gold? Coin finds and the pay of the Roman army. Zephyrus 53-54, 2001. 579-588 argues for silver. 11. Wigg, D. G.: Coin supply and the Roman army, in: Groenman-van Waateringe, W.; van Beek, B. L.; Willems, W. J. H. et al. (Eds.): Roman Frontier Studies 1995. Proceedings of the XVIth International Congress of Roman Frontier Studies. Oxbow Mongraph 91 (Oxford 1997) 281288 esp. 284-287. Peter, M.: Untersuchungen zu den Fundmünzen aus Augst und Kaiseraugst, Studien zu Fundmünzen der Antike 17 (Berlin 2001) 40-42 argues for an intentional policy. However, the fact that in contrast to the moneyers’ coins (see below) the Republican asses were not countermarked suggest that they did not form part of the official coin supply, but arrived via the more general mechanisms of circulation. 12. This picture is repeated outside N. Gaul, for example in N. Italy (Veneto; RMRVe) and Carnuntum on the Danube (FMRÖ III/1). 13. Suet. Div. Aug. 101, 2-3. 14. Wolters, R.: Caius und Lucius Cæsar als designierte Konsuln und principes iuventutis. Die lex Valeria Cornelia und RIC I, 2205ff. Chiron 32, 2002, 297-323 esp. 318. 15. Wigg (note 4; Function) esp. 420. See also van Heesch, J.: Les romaines et la monnaie gauloise: laissez-faire, laisser-aller? in: Metzler/Wigg-Wolf (note 4). 997 DAVID WIGG-WOLF Corresponding to this picture of slow change, we also find old native attitudes to coinage continuing well into the Julio-Claudian period. The Roman army seems to have reacted to a monetary environment that required small bronze coins in the native tradition by halving (or even quartering) Roman coins (mainly asses). The continued need for small coins in native contexts was also satisfied by producing imitations of Roman coins at a reduced standard; one group of such imitations was produced on the Mosel region, and carefully struck at the weight of half an as16. Although Roman iconography was adopted, the metrology of the coins follows native tradition. A similar phenomenon is to be observed with the silver. Native sites show a clear preference for Roman quinarii which correspond in size more closely to native silver. Whereas at military sites the ratio of denarii: quinarii is always higher than 5:1, at native sites it is always below 3,5:1. 7. Modelling coin use On the basis of this data we can now model how coinage was flowing and being used in N. Gaul in the early Empire (fig. 6). Fig. 6 shows the flow of bronze coinage: Roman bronze entered circulation primarily via the military camps, from where it flowed on into native contexts. This explains a) why native coin remained in circulation so long in the hinterland of the Rhine frontier, and b) why the spectrum of bronze changed so rapidly in the military zone. Little bronze was flowing back to the central administration (fig. 7). We can also see how bronze was moving in circulation (fig. 6). Fresh coin was not spreading directly from the mint, where it was issued, but was being supplied directly (or via treasuries) to the camps, where it entered circulation17. The coin then circulated locally; we should imagine a series of overlapping local pools, and it was possible for coins to move slowly from pool to pool, and so –in small numbers– to move long distances. This could be how the Republican asses spread into the Upper Rhine Valley in the JulioClaudian period. But occasionally exceptional movements could move coins in larger numbers suddenly over long distances, for example when troops were being transferred. In this way Spanish coins came to Oberaden or Vetera, and this is how the coins found on the battlefield at Kalkriese arrived there. When considering how coin behaved in circulation it is important to differentiate between these three levels. In everyday circulation bronze coin tended to move slowly and locally, but at times it could move long distances, and in large numbers. Abbreviations: BAR dlT British Archaeological Reports. H. de La Tour, Atlas de monnaies Gauloises (Paris 1892). FMRÖ Fundmünzen der römischen Zeit in Österreich. RMRVe Ritrovamenti Monetali di Età Romana nel Veneto. Scheers S. Scheers, Traité de numismatique celtique. II. La Gaule Belgique. Annales littéraires de L’Université de Besançon 195 (Paris 1977). 16. Wigg (note 4; Function) 415-436, fig. 1. 17. This point was already made by Wells, C.: The German Policy of Augustus (Oxford 1972) App. II, but his excellent work has not received the attention that it deserves. 998 NORTH GAUL AND RÆTIA Fig. 1. Sites mentioned in the text Date of layer c: post 30 B.C. c: post 30 B.C. C1 Fig. 2. c: post 30 B.C. C2 C3 C4 c: post 30 B.C. R Coin finds from ditch fillings at a) the Titelberg, and b) the Martberg. Coin groups: C1: Celtic, late-2nd/early-1st century BC; C2: Celtic, early/mid-1st century BC; C3: Celtic, second half 1st century BC; C4: Celtic, late-1st century BC; R: Roman. 999 DAVID WIGG-WOLF The distibution of the bronze coins of the Treveri with the legend ARDA (Scheers 30a) Fig. 3. Oberaden 100 80 80 60 60 40 40 20 20 0 N A L1 M R 0 L2 Kalkriese 100 80 60 60 40 40 20 20 Fig. 4. N A L1 M N R 0 L2 A L1 M N A L1 M The proportion of different bronze issues from selected military sites. Coin issues: N: Nemausus (RIC 155-157); A: ‘Aduatuci’ (Scheers 217) L1; Lugdunum, first altar series (RIC 230) M: moneyers’ issues from Rome (RIC 323ff.) R: Republican bronze L2: Lugdunum, second altar series (RIC 231ff.) 1000 R L2 Trebur-Geinsheim 100 80 0 Waldgirmes 100 R L2 NORTH GAUL AND RÆTIA 100 90 80 70 60 50 40 30 20 10 0 RIC 323ff. (18-17 BC) Fig. 5. RIC 370ff. (16-15 BC) RIC 426ff. (7-6 BC) The proportion of moneyers’ issues from Rome at military sites on the Rhine compared with Haltern () and Augsburg-Oberhausen () non-military contexts non-military/ native contexts military contexts military vici/ traders military (soldiers/ civil servants) (money changers?) provincial treasury mint Fig. 6. The mechanisms of the flow of Roman bronze coin in N. Gaul in the early Empire Coin supply Payment / entry into circulation Circulation Extraordinary movements Fig. 7. The supply and movement of bronze coin in circulation 1001