The Troas-Mysia Boundary Ambiguity: A Methodological Approach to Regional Classification of Ancient Mints
Author: NumisTR Research Team
Date: January 3, 2025
Category: Research Article, Ancient Geography, Numismatic Methodology
Abstract
The boundaries between the ancient regions of Troas and Mysia in northwestern Anatolia have been contentious from antiquity to the present day. This study examines the methodological approach and source evaluation process used to determine the correct regional attribution of 13 ancient mints appearing in both regions. Our research presents a comparative analysis between geographic positioning, critical evaluation of ancient sources, and the classification standards of numismatic authorities.
Keywords: Troas, Mysia, numismatic classification, ancient geography, mint attribution, methodology
1. Introduction: Historical Roots of Boundary Ambiguity
The ancient geography of northwestern Anatolia presents an ongoing challenge for modern researchers. The intersection of the Troas (Troad) and Mysia regions constitutes a particular problem due to both conflicting descriptions by ancient authors and inconsistencies in modern scholarly classifications.
1.1. Contradictions in Ancient Sources
The definition of Troas boundaries in Strabo's Geographica (1st century CE) has become a central topic of modern scholarly criticism. As noted in William Smith's Dictionary of Greek and Roman Geography (1854):
"Strabo, from his well-known inclination to magnify the empire of Troy, describes it as extending from the Aesepus to the Caicus."1
This approach reflects a perspective shaped by philological interpretation of Homeric texts rather than geographic reality, influenced more by literary tradition than empirical observation.2 Modern scholars concur that Strabo's boundary definitions display a "tendency to exaggerate Troy's empire."3
1.2. Geographic vs. Administrative Boundaries
The complexity of the problem stems from the variability of administrative boundaries across different periods:
- Persian Period: The name Mysia was applied only to the northeastern part of the country (Mysia Minor), while the western part of the Hellespont coast bore the name of Lesser Phrygia, and the southern district that of Troas.1
- Hellenistic Period: Troas comprised the northern coastal region from Sigeion to the bay of Adramyttium.1
- Roman Period: In later times, Troas was part of Mysia, comprising the coastal district on the Aegean from Cape Lectum to the neighborhood of Dardanus and Abydus on the Hellespont, extending inland about 8 geographical miles to Mount Ida.1
2. Methodological Approach: Multi-Layered Source Evaluation
Three fundamental source categories were evaluated for mint classification in the NumisTR project:
2.1. Geographic Approach
Our initial hypothesis was that geographic position should be determinative:
Criterion:
- On Troas boundary (coastal region) → Mysia
- Within Troas (core region) → Troas
Theoretical Foundation:
Mount Ida as the eastern boundary of Troas according to modern scholarly consensus1 and the assessment that the Aesepus River represents Strabo's exaggerated boundary.3
🔍 Test Case - Scepsis:
The positioning of the Scepsis mint in the interior of Mount Ida, near modern Bayramiç,4 proves that Troas was not merely a coastal strip but a legitimate region with a distinct core territory. This finding supports the validity of the geographic approach.
2.2. Academic Source Analysis
Pleiades Gazetteer:5
The Pleiades digital ancient geography project is accepted as an academic standard reference. However, our examination revealed:
- Abydus → classified as Mysia
- Lampsacus → classified as Mysia
- Conflicting results: inconsistency with numismatic sources
Wikipedia and General Sources:
General reference sources present inconsistent classifications and cannot be used as primary academic sources.
2.3. Numismatic Authority Standard
Asia Minor Coins (asiaminorcoins.com):6
One of the most comprehensive and expert-reviewed digital catalogs of ancient Anatolian coinage.
Advantages:
- Numismatic focus: Classification based on coin data
- Expert review: Validated by field specialists
- Consistent methodology: Standardized approach across all regions
- Current: Reflects modern numismatic research
3. Research Process: 13 Overlapping Mints
3.1. Problem Definition
Analysis of the NumisTR database identified 13 mints appearing in both Mysia and Troas regions:
| No | Mint | Geographic Location |
|---|---|---|
| 1 | Abydus | Dardanelles Strait (coastal) |
| 2 | Antandrus | Foothills of Mt. Ida, Gulf of Adramyttium |
| 3 | Assos | Behramkale, Aegean coast |
| 4 | Dardanus | Dardanelles Strait (coastal) |
| 5 | Gargara | Coastal region |
| 6 | Lampsacus | Lapseki, Hellespont |
| 7 | Parion | Kemer, Marmara coast |
| 8 | Pionia | Uncertain location |
| 9 | Scepsis | Interior Mt. Ida, Bayramiç |
| 10 | Sigeion | Yenişehir, Aegean coast |
| 11 | Teuthrania | Near Pergamon |
| 12 | Zeleia | Foothills of Mt. Ida, Aesepus River |
| 13 | Alexandria Troas | Dalyan, Aegean coast |
3.2. Hypothesis Test: Coastal Region Assumption
Question: Are ambiguous mints always located in coastal regions?
Analysis:
- Coastal region: 9 mints (69%)
- Interior: 3 mints (23%) - Scepsis, Zeleia, Teuthrania
- Uncertain: 1 mint (8%) - Pionia
💡 Conclusion: The positioning of Scepsis in the interior of Mount Ida proves that Troas was not merely a coastal strip but a legitimate geographic unit with a core region. This finding supports the scientific validity of the geographic approach.
3.3. Systematic Comparison
Three sources were compared for each mint. Below are three example cases:
Example 1: Abydus
- Geographic location: Dardanelles Strait (border region)
- Pleiades: Mysia5
- Asia Minor Coins: Troas (#1 Abydos)6
- CoinWeek (Mike Markowitz): Troas7
- ✅ Decision: TROAS (priority to numismatic authority)
Example 2: Lampsacus
- Geographic location: Lapseki, Hellespont (border region)
- Pleiades: Mysia5
- Asia Minor Coins Mysia: ✅ #16 Lampsakos6
- Asia Minor Coins Troas: ❌ Not listed
- ✅ Decision: MYSIA (numismatic standard clear)
Example 3: Zeleia
- Geographic location: Foothills of Mt. Ida, Aesepus River bank
- Historical debate: Is Zeleia = Gergis?8
- Research result: Different cities (Gergis listed #10 in Troas)
- Asia Minor Coins Mysia: ✅ #28 Zeleia6
- Asia Minor Coins Troas: ❌ Not listed
- ✅ Decision: MYSIA
4. Methodological Decision: Priority of Numismatic Standard
4.1. Comparison of Three Approaches
| Approach | Advantages | Disadvantages |
|---|---|---|
| A. Geographic Criterion | Physical reality, measurable | Ancient boundaries variable, open to modern interpretation |
| B. Academic Consensus | Scientifically grounded | Conflicts with numismatic data, interdisciplinary inconsistency |
| C. Numismatic Authority ✅ | Based on coin data, expert-validated, consistent | May not always align with geographic reality |
4.2. Final Decision: Option C - Numismatic Standard
Rationale:
- Disciplinary Alignment: Since NumisTR is a numismatic project, adherence to standard classifications in the numismatic field ensures scientific consistency.
- Expert Review: Asia Minor Coins provides a peer-reviewed resource specializing in ancient Anatolian coinage.
- Consistency: Application of the same methodology across all Anatolian regions ensures systematic approach.
- Practical Validity: A familiar and accepted standard for coin collectors and researchers.
📚 Scientific Necessity:
It must be acknowledged that different disciplines (geography, history, numismatics) may have different priorities. In numismatic studies, prioritizing classification systems based on coin data is methodologically valid.9
5. Results: Final Classification of 13 Mints
5.1. MYSIA → TROAS (9 Mints)
Mints found in the Asia Minor Coins Troas list (#1-26):
- Abydus → TROAS (AMC Troas #1)
- Antandrus → TROAS (AMC Troas #4)
- Assos → TROAS (AMC Troas #5) — Name standardization: assus → assos
- Dardanus → TROAS (AMC Troas #7)
- Gargara → TROAS (AMC Troas #8)
- Pionia → TROAS (AMC Troas #19)
- Scepsis → TROAS (AMC Troas #23)
- Sigeion → TROAS (AMC Troas #21) — Name standardization: sigeum → sigeion
- Alexandria Troas → TROAS (AMC Troas #3) — Consolidation: 'troas' → 'alexandria_troas' (capital of Troas)
5.2. Remaining in MYSIA (4 Mints)
Mints NOT found in the Asia Minor Coins Troas list:
- Lampsacus → MYSIA (AMC Mysia #16)
- Parion → MYSIA (AMC Mysia #18)
- Teuthrania → MYSIA (AMC Mysia #26)
- Zeleia → MYSIA (AMC Mysia #28)
5.3. Statistical Summary
| Category | Number | Percentage |
|---|---|---|
| Moved to Troas | 9 | 69% |
| Remaining in Mysia | 4 | 31% |
| Total | 13 | 100% |
6. Scientific Contribution and Implications
6.1. Methodological Transparency
This study presents a transparent and reproducible methodological approach to classification problems encountered in digital cataloging of ancient coin collections. Full documentation of the decision-making process provides an open framework for scientific review and critique.
6.2. Interdisciplinary Dialogue
Comparative evaluation of geographic, historical, and numismatic approaches demonstrates how different disciplines bring different perspectives to ancient world studies. This type of multi-layered analysis can serve as a model for future research.
6.3. Digital Numismatic Standards
Adoption of expert-reviewed digital resources like Asia Minor Coins as reference standards strengthens the scientific validity of digital numismatics and values the work of field specialists.
7. Conclusion
The boundary ambiguity between the Troas and Mysia regions reflects the complexity inherent in ancient geography. This study, in classifying 13 overlapping mints:
- Geographic analysis demonstrated the importance of physical positioning
- Academic source evaluation identified interdisciplinary inconsistencies
- Numismatic standard was adopted as the final decision criterion
🎯 Final Result:
9 mints attributed to the Troas region, 4 mints to the Mysia region, ensuring full compliance with Asia Minor Coins' expert-validated classification.
This methodological approach can serve as a model for resolving similar regional ambiguities (Aeolis-Mysia, Lydia-Phrygia, etc.) and contribute to the scientific reliability of digital numismatic collections.
References
- Smith, W. (1854). Dictionary of Greek and Roman Geography. London: Walton and Maberly. Entries: "Troas" and "Mysia." Access: Perseus Digital Library, http://www.perseus.tufts.edu/
- Dueck, D. (2012). Geography in Classical Antiquity. Cambridge University Press. On Strabo's Homer-philological focused approach.
- Engels, J. (1999). "Die Strabonische Kulturgeographie in der Tradition der antiken geographischen Schriften und ihre Bedeutung für die antike Kartographie." Orbis Terrarum 5: 63-114.
- Scepsis ancient city location data. Pleiades Gazetteer, https://pleiades.stoa.org/places/550891
- Pleiades: A Gazetteer of Past Places. Institute for the Study of the Ancient World, New York University. https://pleiades.stoa.org
- Asia Minor Coins: Photo Gallery and Collecting Guide. Sections: Troas, Mysia. https://www.asiaminorcoins.com/
- Markowitz, M. (2017-2018). "Coins of Ancient Greek Troas (Troad): Parts 1-4." CoinWeek. https://coinweek.com/
- Topostext: "Ζέλεια - Zeleia, Archaic to Roman settlement in Mysia." https://topostext.org/place/402276UZel
- Howgego, C. (1995). Ancient History from Coins. London: Routledge. Chapter 1: "The Nature of Numismatic Evidence," pp. 1-24. On numismatic classification methodology.
Appendix: Asia Minor Coins Classification Comparison
Troas Region (26 Cities/Mints)6
1. Abydos
2. Achilleion
3. Alexandreia (Alexandria Troas)
4. Antandros
5. Assos
6. Birytis
7. Dardanos
8. Gargara
9. Gentinos
10. Gergis (distinct from Zeleia)
11. Hamaxitos
12. Ilion (Troy)
13. Kebren
14. Kolone
15. Lamponeia
16. Larisa-Ptolemais
17. Neandreia
18. Ophrynion
19. Pionia
20. Rhoeteion
21. Sigeion
22. Skamandreia
23. Skepsis
24. Tenedos
25. Thymbra
26. Troas Uncertain
Mysia Region (Relevant Mints)6
- 16. Lampsakos
- 18. Parion
- 26. Teuthrania
- 28. Zeleia
Note: This article is the scientific documentation of the regional classification work undertaken within the NumisTR project. Classification decisions were made based on published academic sources and expert-reviewed numismatic catalogs.
Contact:
Web: https://www.numistr.org
License: This article is published under the Creative Commons Attribution 4.0 International (CC BY 4.0) license.
Last Updated: January 3, 2025