Abstract
Islamic potteries have been studied since about 100 years ago, which concluded to whole bunch of disseminated literature, including books and articles. However, new findings from archaeological excavations and surveys light ambiguities and develop modern knowledge of potteries. Archaeological excavation project of troglodytic structure of Tahigh revealed glazed and unglazed potsherds that have been left unstudied. Accordingly, present research aims to classify findings from Tahigh to define cultural interactions with neighboring areas, further than relative chronology. Two main problems raise here as period of potteries of Tahigh and relevant manufacturing center(s). collecting data follow bibliographic and field work studies that is based on analytic-descriptive method. Considering comparative studies, the findings probably date to Islamic medieval centuries; and regarding available data, exotic items mostly imported from sudden neighboring areas or close regions of Central Iranian Plateau, including Zolf Abad of Farahan, Moshkoyeh Zarandieh, Aveh, Rey, and Kashan, however, there have not been identified any items from further regions of Kurdistan, Zanjan, and Kirman or other countries of China and India. 
Keywords: Underground Hand Making, Tahigh Khomein, Pottery, Investigation of Medieval Islamic.

Introduction
Present paper comes from a season of archaeological excavation and unearthing troglodytic structure of Tahigh, Khomein, which concluded to many pieces of potsherd (Sherahi 1393). It is necessary to involve in the excavation and pottery findings in a monogram, because of lack of relevant literature and diversities of findings. Accordingly, present paper intends to classify and define cultural interactions, in addition to relative chronology, that is responding to problems facing chronology, manufacturing centers, defining local, regional, and intraregional cultural and commercial relations of residents of Tahigh to the other areas. Descriptively and analytically present paper investigates data that collected according field works and bibliographic methods; findings resulted of archaeological basic activities and excavations that studied bibliographically. The authors, firstly, present introductions on Tahigh site, then investigate different types of revealed potsherds. 

Discussion
Some 10,000 pieces of glazed and unglazed potsherds revealed following the 1st season of excavations of troglodytic structure of Tahigh. Around 60% of total amount of potsherds are unglazed ones, as the most amount of findings. One could categorize potsherds to different types, considering technical and decorative characteristics, as follows: Plain or decorated kitchen wares with grey or black temper; Plain or decorated kitchen wares with reddish buff temper or smoky dark brown, similar to some findings from Rey; Plain or decorated wares with reddish buff temper; Decorated or plain wares with buff temper; Wares with reddish buff temper and inlaid to patches of turquoise glaze, or with dark brown temper and inlaying of patches of bronze similar to samples from Moshkuyeh and Rey;Wares with buff or reddish buff and typical stamped Seljuq decoration, and wares with light buff temper and orange painted decoration.
Glazed wares from the site mainly are frit wares that vary to many types including different types of glazed monochrome ones and underglaze incised or stamped decorations, types of underglaze paintings on white or turquoise background for example blue and striped white, wares with silhouette turquoise underglaze decoration, and few samples are painted luster or enameled wares. The potteries are very similar to medieval potteries from Zolf-Abad, Moshkuyeh, Kashan and Rey. Furthermore, there were found four unique miniature frit wares with painted underglaze decorations from Tahigh; there have not been recovered similar comparative samples from the other sites. There were recovered many glazed and unglazed tallow burners that formally categorized to four groups of plain cup-like, couple handled cup-likes, plain piped, and bisection piped.   

Conclusion
There have been recovered different types of unglazed potteries, with clay, sand or grit temper, whereas glazed findings are generally frit wares, and few clay wares. The unglazed wares show stamped decorations that typically manufactured during medieval Islamic centuries, however, decorations of unglazed painted samples characteristically revealed during 11 to 13th centuries, which have not been reported from other archaeological sites. Considering comparative chronologies, the unglazed potteries of Tahigh probably manufactured during Islamic medieval centuries especially 11-13th centuries; they were probably manufactured in workshop(s) close to the site or peripheral settlements. However, the other unglazed potteries, including stamped ones, probably imported from other areas such as Moshkuyeh Zarandieh or Rey. The glazed wares revealed abundance and diversities of burnishing and productions, generally frit wares, however, there were identified few clay ware samples. Regarding comparative chronologies, the potteries manufactured between 12-13th centuries. No samples were regional production, while they were probably imported from other regions including Zolf-Abad, Moshkuyeh, Aveh, kashan, and even Rey. Furthermore, tallow burners, generally frit wares, probably manufactured during 11-13th centuries. According to comparative studies of Islamic potteries of Tahigh, one could suggest that residents had local and regional cultural and commercial relations. Accordingly, pottery findings generally are reveal similarities to settlements at Iranian Central Plateau including Moshkuyeh, Kashan, and Rey, rather than other sites such as Jiroft, Aqkand of zanjan, and Garoos of Bijar. It may be troglodytic construction, structure, and small area with little population of Tahigh that never permitted it to raise as a metropolis with intraregional or even international commercial relations.

Abstract
The troglodytic architecture complex in Arzanfoud (Arzanpoul) is located 30 km southeast of Hamadan, 2 km south of Arzanfoud village. The complex accidentally recovered following mining activities at 2010. There have been four seasons of archaeological activities including excavations, documentation, earthworks, and identifications. According archaeological activities, more than 70 troglodytic spaces revealed that dated to historic and Islamic periods relying on pottery findings. There are questions on variations, forms, techniques, and decorations including 1) what dates are pottery types of troglodytic spaces? 2) What are common techniques and decorations of potteries? Considering descriptive-analytic method, findings, collected of fieldworks and bibliographic studies, qualitatively analyzed. Conclusions indicate that pottery findings date to historic period, Parthian and Sassanid, and middle and late Islamic periods (Seljuq, Ilkhanid, Timurid, and Safavid). Among the most important historic potteries are Clinky wares, grooved rims, and hump-like rims; while the most significant Islamic potteries are stamped wares, painting underglaze, lusterwares, Sgraphiato, enamled wares, and blue and white. Regional soils studies, and nearby Mica and Quartz mines indicate that potteries with Mica and Quartz in temper are, probably, local productions, while the others are probably exotic.
Keywords: Hamadan, Arzanfoud (Arzanpoul), Handmade Troglodytic Architecture, pottery, Historical, Islamic.

Introduction
One of the goals of archaeological research is the study of cultural changes, and in this regard, examining and analyzing the material culture of the past is of particular importance. In the term of archaeologists, these remains are called data. In order to achieve the general goal of archeology - the reconstruction of the past life of mankind, these data must be examined in a specific and logical framework and turned into evidence. In general, pottery is one of the most abundant archaeological data, which is of particular importance in any archaeological analysis. Due to its abundant and continuous production, pottery has always adopted various transformations and innovations in its shape and role, some of which have arisen due to the development and internal growth of cultures over time. Another part of these changes emerges due to cultural and economic links with far and near societies. In fact, pottery is considered the best cultural indicator in order to know societies and it is very important for communication between different units of a regional culture on the one hand and trans-regional cultures on the other hand. Now, according to the above-mentioned materials and referring to the importance of pottery in the process of examining and studying the pottery of different periods in various areas, it is necessary to carefully analyze the typology of pottery and the decorations used in the pottery according to the methods of pottery making and analysis to provide a logical answer to the following questions: 1) what dates are pottery types of troglodytic spaces? 2) What are common techniques and decorations of potteries? Considering descriptive-analytic method, findings, collected of fieldworks and bibliographic studies, qualitatively analyzed.

Discussion
The unique types of this architecture can be set handmade troglodytic underground architectural complex at Arzanfoud in Hamadan noted that was discovered by accident in 2010 as a result of mineral exploration activity. This area is located 30 km South East of Hamadan city (provincial capital) and is situated 2 kilometers south of a village with the same name. The area of the Alvand Mountains, located in the heart of pristine nature and intact. As you explore the collection of handmade troglodytic of Iran was faced with numerous questions, The most important questions were raised about whether this complex of Arzanfoud when created, What time period was used in this series as well as a vast range of different spaces for what purpose and the user was created. According to the first season of archaeological research questions in this category sponsored Ali Khaksar was started in 2010 and the second and third chapters of this research will follow in subsequent years 2011 and 2015. This research programs (identification, documentation, clearing and archeological excavations) in this area were conducted. These results identify more than 70 hand-made underground spaces including rooms and halls with variable depth from 3 to 7 meters. Several hypotheses have been raised in line with spaces this set of user talk ritual, habitat, refuge and exile has been the case so far as the draw of any archaeological activity has been approved. Also according to studies cannot accurately determine the time to create this collection, but this complex be used to set time periods during the middle and late Parthian and Islamic centuries been used on. The underground spaces are connected to the surface via stairs-like entries in the schistose bedrock. This set covers all the spaces are arched, it works well in most areas, this collection strikes a sharp object (possibly pick) clearly observed. It also sets the foundation lamp oil lighting spaces that were in the wall spaces. In some places the walls of adjacent platforms (made from stone-ground or wall stile), water channels and sources are visible. It should be noted that the surface area of architecture can be seen as evidence that more archaeological research is needed to provide comments.
The pottery found in the Arzanfoud area can be divided into two groups of historical periods, including the Parthian and Sasanian periods, as well as the Islamic period. Parthian period pottery includes types: Clinky, Pottery jar with one vertical handle and jar with two vertical handle; Sassanid period pottery includes types; the plate with a simple flat edge turned outwards, the bowl with a Pigeon head rim, Bowls with convex and prominent edges and Pottery with grooved edges (three edges). 
potteries of the Islamic period can be divided into two main types, including unglazed (Decorations removed and added on pottery, bottom image, silver colored mica particles on pottery, Pottery with carvings, . potteries with a pattern of birds in a circle, Stamped pottery from Arzanfoud and comparable samples and Pottery with inlaid decoration) and glazed (Pottery with single-color of lapis lazuli glaze, Potteries with a prominent pattern under monocolor glaze, Sgraffiato pottery, Zarinfam pottery, Pottery with animal motifs, underglaze painting type, Pottery with underglaze painting (Ghalam Meshki), Pottery with underglaze painting and Pottery with blue and white glaze).

Conclusion
The pottery found in the Arzanfoud area can be divided into two groups of historical periods, including the Parthian and Sasanian periods, as well as the Islamic period. Parthian period pottery includes types: Clinky, Pottery jar with one vertical handle and jar with two vertical handle; Sassanid period pottery includes types; the plate with a simple flat edge turned outwards, the bowl with a Pigeon head rim, Bowls with convex and prominent edges and Pottery with grooved edges (three edges). 
The pottery of the Islamic period of this site belongs to the middle and late Islamic centuries (Seljuq, Ilkhanid, Timurid and Safavid), among which the pottery of the Ilkhanid period in Arzanfoud is of considerable importance. According to the archaeological research conducted in Arzanfoud, no evidence of a pottery kiln has been found so far, but surface evidence and findings related to pottery production have been observed in the area. On the other hand, silver and gold mica and quartz particles can be seen in much earthenware, which, due to the location of mica and quartz mines in the area and the vicinity of the area, can probably be the production of some earthenware in the area. One of the interesting points of interest in the historical and Islamic pottery of Arzanfod is the great similarity with the pottery types of other historical and Islamic sites of Hamadan province, including: Hegmataneh Tape, Zainoabad Tape of Bahar, Laodiceh of Nahavand and especially the architecture of the Samen underground handmade troglodytic in Malayer, which has the most similarity with Arzanfod’s pottery findings, which shows extensive cultural connections.