In this article, I build on my earlier work, which places Manichaean missionary activity within a larger network of court activity from the Roman Empire to Tang China, in which ambassadors, as well as wandering sages and ritual specialists, spread knowledge about cultural difference. These interactions usually took part between neighboring principalities, but they were also enmeshed in the gradual spread eastward of Iranian Manichaeism across Central Asia. Various Manichaean accounts highlight the importance of teaching “wisdom” in the bid for support from local rulers. According to the Cologne Mani Codex, Mani meets an unnamed king, instructing him in wisdom, the Manichaean commandments, as well as the “two natures”. What fragmentary evidence we possess for the spread of Manichaeism to China suggests that it, too, proceeded largely through the activity of traveling sages across court networks. 

Abstract
An archaeological survey was carried out in 2019 with the aim of identifying and investigating the Ilkhanate period on the banks of the Aras River in East Azerbaijan province. The present study focused on the study of the large, wide, mountainous and impassable gates called “Sham Valley”, which was formed by the confluence of two major rivers of the Aras with Aqchay, which extends near the city of Khoy and was important in the field of trade relations and culture. The strategic and geopolitical position of the region with the surrounding regions such as the Caucasus, Turkey and Central Asia, as well as its geoeconomic position as a corridor of communication corridors led to many cultures and civilizations from the second millennium BC to later epochs. Alternating in this area. In other words, the main factor for the emergence of these ancient settlements is the location of the trade routes, the easy inter-regional and supra-regional communication, especially during the Mongolian Ilkhanate period, which played an important role in the development of cultures in the Sham valley. On the other hand, due to the religious importance of this region during the Mongolian Ilkhanate period, based on its foreign policy and the existence of important churches such as the church of Saint Stepanos Monastery, the Qarah Church and Zur Zur Church, which are known in the world and in whose case there are no reports or documents, there is no archaeological activity; therefore, a careful study of this area, as well as the study of the ceramics obtained from these areas, has provided useful information about pottery technology and the social structure of the area in different cultural periods, especially the Ilkhanate period.
Keywords: Northwest Iran, Jolfa, Sham Valley, Ilkhanid Pottery, Petrography.

Introduction
As a result of the study, 53 ancient sites from prehistory to Islamic times have been identified and recorded; areas such as the Naneh Maryam Cemetery and the Chupan Church are the most important. In these areas a significant number of Middle Islamic centuries ceramic pieces were carved in simple glazed form. It is important to identify the constituents of each pottery, to determine the difference in composition and constituents between the samples, to determine the percentage of each constituent, to determine the baking temperature of the pottery based on the available minerals, and finally to archaeologically study its origin and understand the social structure of the area. Knowledge of the pottery’s components can provide us with useful information about the geographical origin of pottery in the region and its consumers.

Materials and Methods
Thin-section petrography is one of the common and widely used methods in geology and archaeology. This method is employed to examine a broad range of materials such as rocks, minerals, ceramics, slag, bricks, and plaster (a mixture of lime and gypsum). In this technique, an extremely thin section of the rock or ceramic object under study is prepared. This section is thin enough to allow light to pass through it. Then, by placing it under a polarizing microscope, the minerals present can be analyzed. Since minerals exhibit different properties and colors under polarized light, petrography specialists can distinguish them from one another; thus, it is possible to identify the types of minerals, their characteristics, shapes, and sizes in rock or ceramic samples (Ellis, 2000). Moreover, ceramic petrography provides valuable information regarding the technical characteristics of ceramics, such as whether the vessels are wheel-thrown or handmade, and the additives incorporated into the ceramic paste (temper). These tempering materials typically include fragments of igneous rocks, siliceous particles, and silt and clay components. All plant-based and organic materials in ceramics are eliminated at temperatures of approximately 200 to 250 degrees Celsius, leaving only their voids behind (Mousavi-Faghih, 2018).
For the microscopic studies of ceramics obtained from the Sham valley survey, a James Swift model polarizing binocular microscope was used. The magnification applied in this study was 4X. To facilitate the presentation and analysis of results, the petrographic data were organized in a table. The first row of the table lists the components constituting the ceramics, and the first column provides the name and number of each ceramic sample separately. The presence of each component or mineral in the sample is indicated by an asterisk (*), while its absence is marked by a dash (–). If the abundance is minor or trace, it is denoted by (tr). The selected samples for this study come from two sites: the Naneh Maryam cemetery area (code C.042) and the Chopan Church area (code C.053). Ceramics consist of two main parts: the paste (matrix) and the tempering materials. In ceramic petrography studies, a significant focus is given to the additives mixed into the paste. Archaeologists typically consider components larger than 0.1 millimeters as temper or inclusions. In the study of ceramic samples from the Darreh Sham sites, the petrographic method was employed to identify the components and compositions present in the ceramic paste.

Conclusion
Since the Sham Valley in northwestern Iran has been considered on the basis of texts and travelogues since the early Ilkhanate period, there is a need to inform the patriarchs about the use of pottery from the Middle Islamic period and its production. Accordingly, petrographic studies were carried out on 12 pieces of pottery from the two sites of the Neneh Maryam cemetery and the Chupan church to determine the place of production of these ceramics. On the basis of the available samples and on the basis of the analyses carried out, it was found that the composition of all the pottery studied was related to the Jolfa area and the river sediments and alluvial deposits of the Aras river, as well as seasonal and local rivers. With regard to the baking temperature of the pottery, with the exception of the site of the Shepherd Church, where all the potteries studied had no calcite and tolerated temperatures above 800 degrees Celsius, potteries from other areas tolerated temperatures below or close to 800 degrees Celsius. Two categories of inclusion or temper are observed in the composition of the paste. One technique was used in the production of all glazed ceramics. In this way, a layer of glaze can be seen on the outer surface of the sample and, depending on the desired color, a layer of metal oxide can be found underneath. Underneath the glaze layer is a porcelain layer (a mixture of fine-grained quartz and white clay), which lies directly on the clay body. Furthermore, based on the composition and petro fabric of the examined ceramic samples from this area, it can be concluded that the ceramics are almost identical and similar in composition and origin. 

The vast territorial expanse and unique geographical position of Sasanian Iran necessitated that major inter-civilizational trade and communication routes between East and West either traverse the Sasanian heartland or skirt its peripheries. This strategic geography played a pivotal role in advancing the Sasanian policy of expansionism and economic monopolization, as well as in facilitating commercial, cultural, and political interactions with regional and trans-regional polities. Within this context, examining the political-cultural relations between the Sasanians and ancient Yemen is of particular significance, given both territories’ possession of maritime fronts and their associated trade networks. Consequently, this research aims to investigate the nature and depth of the political and cultural relations between the Sasanians and Yemen, to identify the factors influencing the formation and evolution of these relations, and to assess the reciprocal impact of these relations on the historical developments of both lands. Furthermore, the role of archaeology in elucidating various dimensions of these relations will be considered. Through an analysis of historical and archaeological evidence, this study seeks to answer the following question: What factors led to the formation and perpetuation of political and cultural relations between the Sasanians and Yemen from the 4th to the 7th centuries CE? The findings indicate that hegemony over maritime trade routes played a central role in the interactions between Iran and Yemen during the Sasanian period. Moreover, the results of an examination of the artistic characteristics of specific archaeological finds from Yemen—namely, the Knight relief (from Dhofar), a female figure relief (from Dhofar), a fragment of a decorated textile depicting a Sasanian battle scene with Ethiopians (from Antinoë), and a carved four-faced capital (from the Qalʿa of Ḥasan al-ʿUr in Yemen)—reveal shared features with Sasanian art and corroborate the cultural-artistic influence of the Sasanians in the land of Yemen.

Pottery has long been one of the key mediums for expressing cultural elements in Iran. The decorative motifs used in this art form are deeply rooted in Iranian culture, literature, religion, and political contexts, immortalized through the innovative creativity of Iranian artists. Among these motifs, the “Waq Tree” or “Talking Tree” stands out as one of the most prominent decorative elements, particularly gaining attention during the Ilkhanid period. This motif, which combines natural, imaginative, and mythical elements, was employed in the luster tiles of Takht-e Soleyman and reflects a profound connection between humans, nature, and animals. This study aims to address why this motif was prominently featured and executed by artists during the early Ilkhanid rule at Abaqa Khan’s palace in Takht-e Soleyman. It seeks to explore both visual representations of the examples and their associated cultural foundations. Using a descriptive, analytical, and historical approach, supported by imaging of historical samples, this research concludes that the painters of Takht-e Soleyman’s luster tiles depicted wild animals such as deer, gazelles, and rabbits instead of humans—who are typically central to illustrations of the Talking Tree. The choice of wild animals over human figures may reflect the nature-oriented tendencies of the Seljuks and Mongols. This selection also highlights the influence of Mongol culture on Iranian art—a culture that introduced animal anthropomorphism as a prominent element in literature and art. The Waq Tree, rooted in Iranian and global folklore, symbolizes a deep connection between humans, nature, and living beings. This mythological concept is intertwined with ideas such as the sanctity of nature and the bond between the human world and the natural world. The depiction of this motif on Takht-e Soleyman’s luster tiles demonstrates the artists’ efforts to convey these concepts, which were innovatively reimagined during the Ilkhanid era.

In the prehistory of western Iran, from the Late Neolithic to the end of the Chalcolithic period, there are some red-slipped potteries that continued to exist with minimal or even without any changes, despite the change in periods and the subsequent change in pottery styles and traditions. This has led to ambiguities and errors in distinguishing these types, and as a result, incorrect identification of the cultural periods of some sites of the Late Neolithic period, especially the Chalcolithic period. Are the red-slipped potteries of the Neolithic period to the end of the Chalcolithic period in western Iran really a special type of pottery that continued to exist without any changes despite the changes of cultural periods? What are the differences between the red-coated potteries of the Neolithic period and the Chalcolithic period? The failure of some researchers to distinguish the Red-Slipped potteries of the Neolithic and Chalcolithic periods creates the assumption that these types of pottery are not mutually exclusive. The present article, using an analytical-comparative method, attempts to answer the questions and hypotheses raised by closely examining the Red-Slipped potteries obtained from the excavations of some significant sites of the Late Neolithic and the Chalcolithic period in the western regions of Iran, such as Siahbid, Genail, Ghazanchi, Saha Chai Tepe, and Tepe Gheshlagh. The results of this research show that although there are undeniable similarities at first glance between the Red-Slipped potteries of the Late Neolithic period to the end of Chalcolithic, there are subtle differences in the form of the pottery, the degree of firing, temper, and the type and color of the coating, which a careful study will help distinguish the pottery of the mentioned periods from each other. The findings of this research show that the Red-Slipped potteries of the Late Neolithic period has burnished slip, a feature that is not seen in the later period, especially in the J and Dalma period. Also, in the late Chalcolithic period, in addition to changes in the color of the pottery’s coating, carved decorations are seen on the outer body of red pottery, which has not been reported for Red-Slipped potteries from previous periods.

Abstract
Throughout history, interactions between societies have led to the evolution of cultures, with political systems and ruling powers playing a significant and effective role in this process of cultural amalgamation. A key focus of this research is to examine the dominant culture of the Median and Achaemenid societies and the mutual influences between Iranian culture and the non-Iranian cultures present within these states’ territories. In other words, this study aims to explore the causes and factors behind cultural collisions from the seventh to the fourth centuries BCE, the policies pursued by governments regarding the cultures and nations under their control or neighboring them, and the outcomes of the interactions between various cultures and Iranian civilization for both Iranians and non-Iranian communities. Based on these ambiguities and through an examination of available sources and evidence, along with references to historical texts, the results indicate that, in addition to Iran’s geographic position, which welcomed various tribes with diverse cultures, the coexistence of these groups inevitably influenced Iranian society. What accelerated and enhanced the amalgamation and integration of cultures within Iranian society was the presence of a common enemy, particularly threatening powers in the region, which united these tribes. The capabilities and potential of the Median and Achaemenid political systems, which had trans-regional objectives, played a crucial role in the connection and amalgamation of the existing cultures within Achaemenid territory. The Achaemenids aimed to attract non-Iranian forces and establish political dependency through political marriages and social ties, facilitating the cultural integration of subordinate tribes. This policy aimed to prevent separation and regional turmoil while expanding the cultural domain of the Achaemenids by absorbing and assimilating effective elements from various cultures into Iranian culture.
Keywords: Cultural Fusion, Ancient Iran, Media, Achaemenid, Political Marriage.

Introduction
In the evolutionary course of societies, and amidst the presence of significant trans regional powers with rich cultural heritage, one of the principal issues is to determine the nature of the cultural condition of Iranian society during the Median and, particularly, the Achaemenid eras. In this period, diverse cultures—from those along the Syr Darya (Sihun) to western Asia Minor and the shores of the Aegean Sea—were integrated into a unified political culture. The key question is whether this diversity and cultural plurality gave rise to a heterogeneous and unbalanced society in which no dominant role can be ascribed to Iranian culture, or whether we are confronted with a balanced synthesis of existing cultural elements, wherein a equilibrium was established—through cultural intermingling and fusion—between the distinctions and commonalities of Iranian and non-Iranian cultural facets.
Furthermore, an examination of the consequences of marital alliances that occurred between various ethnic groups and power holders both within and beyond the borders of Iran—as reflected in historical reports—and, more importantly, the occurrence of political marriages between Iranian governments and non-Iranian states, constitutes a highly significant topic. In this research, these issues will be discussed and analyzed in order to ascertain, independently of their varied political, economic, and security implications, the share and impact that such unions had on the culture of ancient Iranian society during the Median and Achaemenid periods. Additionally, the study will assess the extent to which the aforementioned governments succeeded in advancing their political objectives through recourse to this policy and what changes and transformations they effected in the cultural fabric of the region.
The research methodology employed in this article is based on a descriptive-analytical approach. The author has collected data through a critical examination of available sources and evidence, including primary historical texts (such as ancient historical accounts) and significant recent scholarship. This method relies on citation from library-based and primary sources, proceeding with a precise description of the data followed by their analysis to address the raised ambiguities. Specifically, the research focuses on investigating the causes and factors of cultural encounters, the policies of the Median and Achaemenid governments toward various ethnic groups and nations, and the outcomes of cultural interactions. This qualitative approach utilizes historical and cultural tools to analyze causal connections and cultural fusion, without reliance on quantitative or empirical methods.
This study holds considerable importance as it examines the role of cultural and political interactions in the evolution of ancient Iranian societies, particularly during the Median and Achaemenid eras (seventh to fourth centuries BCE). Its necessity arises from existing ambiguities in understanding the prevailing culture in Iranian society, where the cultural diversity of various ethnic groups (both Iranian and non-Iranian) within the vast Achaemenid realm may have produced a heterogeneous society. However, the research demonstrates that policies such as political marriages contributed to the creation of balance and cultural integration. The significance of this study lies in its exploration of the consequences of these connections on culture, politics, economy, and security, which not only aids in comprehending Iranian identity but also illustrates the role of ruling powers in synthesizing cultures to prevent unrest and extend cultural dominance. In the contemporary world, this research is essential as it offers models of cultural coexistence and diversity management that can serve as inspiration for modern societies, particularly in regions with high ethnic and cultural diversity. Moreover, given the geographical position of the Iranian Plateau as a crossroads of cultures, this study helps fill historical gaps concerning the influence of common adversaries and transregional objectives on cultural fusion.

Discussion
As ancient documents and evidence attest, in antiquity and on the Iranian Plateau, in most cases foreign inhabitants lived alongside the indigenous population. They established commercial relations with one another; marriages occurred between men and women of different nationalities; and at times individuals converted from one religion to another. There were even periods in which people worshipped both their own gods and those of foreigners simultaneously. It also happened that an individual would change his or her name and adopt one from another land, or, in addition to a personal name, take on the name of the people among whom he or she resided (Dandamayev, 1366 [1987]: 60). Through these developments—and particularly through the gradual penetration of the Iranian element into the western regions of Iran—it appears that a relatively new culture became prevalent in this area: a culture that was not purely Iranian, but rather a composite culture formed through the amalgamation of migrant and local elements.
In addition to inheriting the cultural legacy and achievements of the Medes, the Persians engaged in substantial borrowing from the indigenous cultures of the region, especially that of the Elamites, who possessed a state tradition spanning several millennia. More than the Medes, the Persians served as transmitters of the culture established in the southwestern Iranian Plateau—and even of Mesopotamian culture—into the heart of the plateau and the Achaemenid Empire. On the basis of personal names, prevailing religious beliefs, and even existing religious sites in various regions, one can trace the extent of Iranian culture in non-Iranian areas and among non-Iranian peoples. At the outset, however, it must be noted that on the Iranian Plateau, despite the formation of an empire, the custom of political marriages among families and tribes remained firmly in place; as observed, in certain regions—particularly in Fars and Elam—relations and exchanges date back to the period prior to Cyrus’s conquests. For example, in Babylon, from the first quarter of the sixth century BCE, Babylonians bore Iranian names.
The influence and predominance of Iranian culture—along with cultural syncretism resulting from relations between Iranian and non-Iranian peoples—led, during the Achaemenid period, to the adoption of Iranian names by non-Iranians, in addition to those who possessed such names due to mixed ancestry. With the expansion of Median influence, and subsequently that of the Achaemenids, into Asia Minor, these powers encountered an important and advanced civilization such as Lydia, which dominated the Ionian city-states and whose culture had profoundly influenced many Greek polities. Cultural confrontation between Iranians and Greeks, and the cultural impact of the Achaemenid state on the Ionian city-states, was evident from the very beginning of Persian presence in Asia Minor. This cultural intermixture intensified further with the Achaemenid domination of Asia Minor and the conquest of the Ionian islands and city-states. Indeed, one of the reasons for cultural—and even ethnic—convergence between Iranians and Greeks in certain regions was their coexistence. Among the primary causes of this coexistence were the relocation of Ionian populations to parts of Asia Minor and the settlement of Iranian populations in various areas of the same region.
By forging alliances and political marriages between Persians and other peoples and powers, the Achaemenids sought to “Achaemenidize” their domains through the integration of Iranian and non-Iranian cultures and the internalization of Persian culture among non-Iranians. They devoted considerable effort to aligning the interests of allies and affiliates with those of the Achaemenid state. Throughout the Achaemenid period, the expansion of imperial influence, the settlement of Iranians in non-Iranian regions (diaspora), and their presence in subject territories accelerated the process of acculturation.

Conclusion
One of the methods employed to integrate and bring together diverse peoples under a comprehensive culture was the creation of bonds and marital alliances among the people’s subject to the Median and Achaemenid states. Political marriage, as a socio-political phenomenon, was practiced throughout Iranian history with predetermined objectives aimed at consolidating social, political, military, economic, cultural, and religious relations among governments and groups. Rulers and governments consistently resorted to various strategies to ensure the continuation of their political existence, and one of the most effective means of achieving political—and even cultural—cohesion and unity was the establishment of bonds among different members of society through intra- and inter-dynastic marriages.
Accordingly, the Achaemenids’ objective in creating such ties and consenting to political marriages was to attract non-Iranian forces, draw them closer to the seat of power, bind them to the political system of the state, and, in other words, achieve the cultural integration of subject peoples and nations. Through cultural amalgamation and convergence—realized in religious beliefs and through marital alliances among peoples and individuals—the Achaemenids sought to ensure that non-Iranian groups would not regard them as outsiders. In addition to preventing separatism and regional unrest, the establishment of a dominant culture allowed the Achaemenid cultural sphere to extend far beyond its political borders, thereby facilitating the acceptance of imperial authority.
Drawing upon the inherent potential of Iranian culture, one of the Achaemenids’ notable initiatives was the selective adoption of significant, effective, and appealing elements from the cultures of subject peoples, their absorption and assimilation into Iranian culture, and their reticulation within a new cultural framework in which Iranian identity and elements held clear predominance.

Abstract
Khuzestan, a primary center of mudbrick and fired-brick architecture in ancient Iran, witnessed the evolution of vaulted construction from the Elamite to the Late Sasanian periods. Among these, arched vaults served not only as structural elements but also as a demonstration of systematic engineering practices tailored to the region’s warm and semi-humid climate. Despite the abundance of surviving monuments, no comprehensive study has analyzed their technical and structural features to uncover the underlying stability principles. This study aims to examine the structural performance and recurring patterns of stability in arched vaults of Khuzestan. Field surveys, documentation of accessible structures, analysis of 111 identified vaulted buildings, and detailed examination of 21 selected representative examples were conducted. The study focused on the interaction of materials, geometric proportions, construction technology, and human craftsmanship in achieving long-term stability. Results indicate that vault stability depended on: 1) the type and geometry of bricks, consistent mortar thickness, and interlocking strategies; 2) diverse construction techniques, including corbeling, radial arrangements, and combination methods; 3) geometric proportions such as span, rise, and vault thickness; 4) adaptation to climatic conditions; and 5) the skill and experience of the builders. This research highlights the presence of a systematic engineering logic in pre-Islamic vault construction and provides a framework for restoration, conservation, and potential adaptation in contemporary architectural practice. The findings demonstrate that these vaults were not merely empirical or accidental in design but reflect deliberate, replicable, and coherent structural strategies.
Keywords: Structural Stability, Vaulted Architecture, Arched Vaults, Pre-Islamic Iran, Khuzestan.

Introduction
Khuzestan has historically played a pivotal role in the development of vaulted architecture within ancient Iranian civilizations. Vaults represent one of the most sophisticated elements of traditional construction, combining technical mastery, material understanding, and adaptation to environmental conditions. From the Elamite through Late Sasanian periods, vaulted buildings in Khuzestan reveal an evolution in construction techniques, reflecting the accumulation of knowledge and local innovation. Arched vaults, in particular, served as primary structural and functional components in ritual, funerary, administrative, and sometimes military architecture.
The study of these vaults provides insight into the strategies employed by ancient builders to achieve stability over centuries. Stability in traditional architecture encompasses not only physical durability but also cultural, climatic, and technical resilience. Builders utilized local materials, precise geometric proportions, and structured load distribution to respond to environmental and functional challenges. Despite extensive archaeological documentation, there has been limited focus on the technical principles underpinning vault stability, particularly in arched vaults.
This research addresses this gap by systematically analyzing recurring structural features, material properties, construction technology, and geometric patterns that contributed to vault durability. The study examines both historical continuity and the adaptation of techniques over time, demonstrating that pre-Islamic vaulting practices in Khuzestan were informed by deliberate engineering logic rather than trial-and-error. Understanding these principles is critical for bridging knowledge gaps in architectural conservation, informing restoration efforts, and inspiring contemporary applications of traditional construction methods.

Discussion 
Analysis of arched vaults in Khuzestan indicates that their long-term stability resulted from a combination of material selection, construction technology, geometric design, and human skill. Key aspects include:
Materials and Mortar: Builders employed trapezoidal, square, and rectangular bricks, wider and thicker at structural bases to distribute loads effectively. Mortars, including clay, gypsum, and bitumen, were chosen according to moisture conditions, ensuring cohesion and stability.
Construction Techniques: Techniques included inclined corbeling, radial arrangements, and hybrid approaches. Temporary wooden or reed supports facilitated precise execution, while multi-layer vaults with controlled thickness enhanced overall strength. Adjacent vaults were often coordinated to reduce lateral stresses.
Geometric Proportions: Ratios between span, rise, and thickness were carefully maintained across periods. Numerical proportional systems guided vault dimensions, while precise interlocking of bricks ensured efficient load transfer.
Human Skill: Mastery in aligning bricks, controlling mortar thickness, integrating vaults with walls, and designing stress-relief features such as recesses and buttresses reflected high craftsmanship.
The historical evolution from Elamite to Sasanian periods shows gradual refinement. Early Elamite vaults utilized simple rectangular cross-sections and limited brick types, while Late Sasanian vaults displayed sophisticated high-rise arches, modular brick use, and multi-layer arrangements. These developments indicate a cumulative knowledge system that informed construction practices and responded to functional and climatic challenges.
The study highlights that stability was never accidental; rather, it emerged from repeated, rationalized engineering practices. Such findings provide an empirical basis for restoration and reconstruction, enabling the preservation of architectural integrity and informing contemporary design strategies that draw upon historical methods.

Conclusion 
This research demonstrates that arched vaults in Khuzestan were underpinned by systematic engineering principles rather than empirical trial-and-error. Stability resulted from the integrated interaction of materials, construction technology, geometric design, environmental adaptation, and craftsmanship. The study identifies: 
- Strategic use of brick types and mortar selection to optimize structural cohesion.
- Refined construction techniques, including corbeling, radial arrangements, multi-layer vaulting, and controlled thickness.
- Geometric proportionality ensuring balanced distribution of forces.
- Adaptation to climate and environmental constraints.
- High-level craftsmanship in aligning elements and controlling structural behavior.
Historical analysis reveals a continuous technological development, culminating in Late Sasanian vaults that exemplify peak structural refinement. Documenting these features provides a foundation for preservation, restoration, and potential adaptation in modern architectural practice. Future studies may compare these vaults with contemporary structures in neighboring regions or explore the influence on early Islamic architecture in southwestern Iran.
The study confirms that pre-Islamic vault construction in Khuzestan represents a coherent, replicable, and sophisticated engineering tradition, offering valuable lessons for both conservation and contemporary design.

Abstract
The horse held a prominent role in the culture of Iran and Mesopotamia, both from mythological and practical perspectives. The aesthetic treatment of horse equipment, beyond its functional aspect, was an expression of reverence for both the horse and its rider. This study aims to identify and analyze the structure, design, and motifs of horse covers (Jul) in Iran and Mesopotamia during the period from 1906 to 330 BCE. The main research question investigates the distinctive structural and decorative characteristics of horse covers in this era. The necessity of this research arises from the fact that, despite the significance of the horse and its equipment in ancient civilizations, the aesthetic and structural aspects of ancient horse covers have rarely been examined in previous studies. Employing a descriptive-analytical method, the study is based on qualitative analysis of documentary data and archaeological evidence. The data were collected through systematic note-taking, and the statistical population includes all available examples- textile fragments, visual representations, and archaeological findings- through which the structure and design of the horse covers of this period can be identified and analyzed. The findings indicate that horse covers in Mesopotamia and Iran evolved from simple, utilitarian forms in the Assyrian period to more complex and decorative types during the Elamite, Median, and Achaemenid periods. Throughout this evolution, their structure developed in terms of size and composition, progressing from small, undecorated examples to large-scale pieces featuring organized and symmetrical animal and vegetal motifs. Beyond their decorative role, these motifs reflected the aesthetic sensibility and cultural values of their weavers. Technically, the use of both flat-weaving and knotted-pile techniques demonstrates a synthesis of functional traditions and advanced weaving skills of the time. Overall, the stylistic and structural evolution of horse covers (Jul) represents a gradual progression in technical mastery, structural precision, and aesthetic awareness, forming the foundation for the later development of carpet weaving.
Keywords: Horse Cover (Jul), Mesopotamia, Ancient Iran, Carpet Weaving, Design and Motif.

Introduction
The domestication of the second generation of horses (DOM2) between 4500 and 3000 BCE in the Pontic–Caspian Steppe marked a turning point in human civilization. These horses, which replaced the earlier and wilder DOM1 type, played a fundamental role in transportation, warfare, and the broader social, economic, and cultural transformations of ancient societies. Their introduction to Mesopotamia, likely during the Akkadian period and more certainly under the Third Dynasty of Ur (2112–2004 BCE), led to significant advances in equestrian technologies. From the Assyrian period (1906–609 BCE) onward, the full use of horse equipment—including harnesses, chariots, saddlecloths (jul), and bridles—became widespread, granting societies with improved horse breeds military and economic superiority and fostering extensive cultural diffusion across Eurasia.
In both Iran and Mesopotamia, the horse held an important place in mythology as well as in practical life—agriculture, warfare, hunting, and transport. The aesthetic treatment and adornment of the horse, including the weaving of the Jul (saddlecloth), reflected the reverence accorded to the animal and its rider. The Jul was a functional textile placed under the saddle to absorb sweat and protect the horse’s back while also ensuring the rider’s comfort and balance. These cloths, made from materials such as wool, cotton, leather, or silk, were produced in various techniques—knotted-pile, flat-woven, jajim, or felt—and were common among nomadic groups.
Archaeological and historical evidence from 1906 to 330 BCE (corresponding to the Assyrian, Elamite, Median, and Achaemenid periods) indicates that the use of horse saddlecloths was prevalent in Iran and Mesopotamia, though little is known about their structure, design, and motifs. This study adopts a descriptive–analytical approach based on documentary research, including textual, visual, and archaeological evidence. All available samples were examined using census sampling, and the data were analyzed qualitatively. The theoretical framework combines Gordon Child’s evolutionary–historical approach with Leroi-Gourhan’s perspective, enabling analysis of both the technical development and the symbolic and cultural dimensions of horse covers (Jul) in Mesopotamia and Iran.

Discussion
Analysis of Assyrian reliefs indicates that horse saddlecloths (Juls) of this period exhibited limited structural and decorative variation, and equestrian equipment was still in the early stages of development. None of the depictions show saddles, stirrups, or securing straps, suggesting that riders sat directly on the jul with their legs hanging freely. However, the finely carved details of the horse’s headgear, including bridles and bits, demonstrate notable technical refinement in this area. Two main types of Juls can be identified: the first, simpler type—likely made of leather or felt—features two flaps and three girth straps; the second, more elaborate type, structurally resembles modern examples and was probably used for ceremonial or ritual purposes. The designs and borders of this latter group are simple yet harmonious, with recurring motifs such as the four-pealed flower, which also appears on the king’s garments, suggesting symbolic correspondence. Technically, the precise weaving method remains uncertain, though evidence points to techniques derived from traditional floor-weaving practices such as pile or flat weaving. Overall, Assyrian juls reflect a transitional stage from purely functional horse gear toward a more aesthetic and symbolic approach in equestrian equipment.
The analysis of Elamite, Median, and Achaemenid Juls (horse saddlecloths) reveals significant stylistic and structural diversity compared to Assyrian examples, owing to a broader corpus that includes rhyta, reliefs, and two surviving woven pieces. Iranian Juls display a transition from purely functional coverings to highly aesthetic and symbolic works. The Rhyta from Maku and Susa (8th–7th centuries BCE) show large, body-covering Juls adorned with animal and floral motifs—dynamic scenes of leopards, ibexes, boars, birds, and trees—arranged symmetrically or diagonally, reflecting a free, pictorial compositional system distinct from the geometric order of Assyrian designs. In the Achaemenid silver Rhyton from Erebuni (5th century BCE) and a similar woven piece identified by Franses (2019), repeated ibex motifs, symmetry, and minimalism emphasize symbolic harmony rather than narrative complexity. This visual tradition continues in the Pazyryk carpet (5th–4th centuries BCE), where 23 visible Juls share a unified geometric structure: rectangular forms with serrated or tasseled edges, linear borders, and symmetrical, abstract designs suggesting both aesthetic refinement and technical mastery. Comparable Juls appear in the Apadana reliefs at Persepolis and the Greco-Persian sarcophagus from Çan, confirming the consistency of form—rectangular bodies with serrated tassels extending to the horse’s hindquarters—across centuries and regions. Collectively, these findings indicate that Iranian Juls evolved from simple utilitarian gear into intricate, symbolically charged textiles, bridging technical innovation with a distinct artistic vocabulary rooted in ancient weaving and decorative traditions.

Conclusion 
This study analyzes the structure, design, and production techniques of horse covers (Jul) from the Assyrian period to the end of the Achaemenid era (1906–330 BCE), demonstrating that in ancient Iran and Mesopotamia these textiles functioned as more than purely utilitarian objects. Over time, horse covers evolved into multilayered media for aesthetic expression, cultural identity, power relations, and technological advancement in textile production. The findings indicate that, beyond responding to technical and climatic needs, horse covers provided a platform for the manifestation of symbolic systems and visual imagination, serving as an intermediary between functional textiles and ritual carpets.
Comparative analysis of Assyrian and Iranian examples reveals that structural differences—particularly in size and extent of coverage—stem from the interaction of climate, function, and culture. Assyrian horse covers, limited mainly to the horse’s back, reflect a functional and minimalist approach, whereas the expanded coverage of Iranian examples enabled greater visual complexity and decorative development. In terms of design and motifs, the gradual transition from Assyrian geometric simplicity to the richness of Iranian animal and vegetal motifs marks the emergence of a coherent symbolic visual language, culminating in the motifs of the Pazyryk carpet.
The diversity of manufacturing techniques, including felting, leatherworking, flat weaving, and pile weaving, reflects both technical sophistication and a functional hierarchy in which pile-woven textiles held ceremonial and symbolic roles. Archaeological and visual evidence further indicates the social and political significance of horse covers, particularly during the Achaemenid period, when they became symbols of power and courtly display.
Within the theoretical framework, the findings align with Gordon Child’s evolutionary–historical approach and Leroi-Gourhan’s theory of the relationship between technique, body, and symbolic expression, positioning the horse cover as a liminal object between function, technology, and meaning. The study thus highlights the enduring role of horse covers in shaping ancient textile traditions and the visual culture of Iran.