Abstract
In architecture a native of Iran is one of the principles of designing urban spaces people heir. Iranian architect has always been the human needs and demands into consideration. The architect of the past based on the desired climate space architecture in order to provide the human comfort design. Climatic conditions, along with other environmental factors, including the most important factors in the formation of the urban tissue. According to the characteristics of the architecture of the hot and dry climate of the burning sun of Iran and high thermal grade set, one of the last in the direction of the architect prolegomena ghosting in designed and produced Gzarha, awning. The awning are enable in the alley and Gzarha, which is part of Ford’s baths and climatic elements as well as the optimum biological requirements, in addition to making in retrofitting buildings of both sides of the Gzarha role. Unfortunately, nowadays in Iranian architecture, awning, to have been forgotten and the urban tissue of the awning or totally destroyed or have been to have been abandoned. With the recognition and evaluation of the architectural had knowledge of the geometry of the design knowledge can be structural elements of the ‘ climate-and once again, and also can be found in contemporary design and the urban tissue of the upcoming hot and dry climate of these special elements of the template. Between the geometry and the architecture of Yazd Fahadan quarter awnings body, and there is significant direct relationship. Based on the literature reviewed thus far, little research on the subject of the typology of Iranian awning and reviews of this climatic elements-from the perspective of structural knowledge of geometry.
Keywords: Indigenous Architecture of Iran, Geometry and Proportions, Consecutive Awning, the Yazd Fahadan Quarter.

Introduction
More research on the concept of the awning as the climatic element, check its stability in the amount of Gzarha and typology in the cities of Isfahan, Yazd, Kermanshah and because Shushtar. This document first geometric features of the architecture of the neighborhood, Yazd Fahadan awnings case is assessed. In the present study research methodology in terms of the objective applied-and in terms of the fundamental, method, method of inductive reasoning. The data field of a library, and on the left-hand tyranny. As well as the method of the analysis of qualitative data, quantitative methods-. After the library studies about the awning and its species, the hot and dry climate, awning, city of Yazd. Given that the neighborhood is one of the valuable historical neighborhoods Fahadan city of Yazd and had the original on the awning has chosen this neighborhood Neighborhood and 25 examples of this continuous awnings precious historic texture of the randomly selected, shooting data and to invoke the method of inductive analysis of the entire case apart. In this study, 256 Motalah sample random item selection and expressed. Between the geometry and the architecture of Yazd Fahadan quarter awnings body, and there is significant direct relationship. Based on the literature reviewed thus far, little research on the subject of the typology of Iranian awning and reviews of this climatic elements-from the perspective of structural knowledge of geometry.

Research Findings
This article focuses on the impact it has had on the geometry and shape of the neighborhood architectural desired awning case analysis. This research was completed in line with the previous research and reviews of historical proportions awning Fahadan quarter of Yazd. Based on the review conducted, became apparent between the geometry as a factor influencing the Fahadan quarter of Yazd awning architecture machines. The awning case study in terms of the geometry of the plan and the facade proportions and comply with the Iranian. The planning rectangular Fahadan quarter of Yazd awning is complete to the ratio of 1.73 and the ratio of that follow. This was evident in the analysis of the maximum number of the awning case reviews in terms of placement location in the middle of the pass. The largest number of covering arch with arch, and most of these Mazh awning in the direction North-South geographic have been drawn. As mentioned, an important element of the native architecture awning and climate are considered that Iran nowadays knowledge making it to oblivion. With this special climatic elements can be revived by the ancient native patterns as well as in the construction of the urban tissue and forming of new concepts that are of interest. In this study, the historical neighborhood of awning plan and valuable knowledge from the perspective of Yazd Sahadan geometry and rectangular proportions of Persia were analyzed. In future research can be found other than to work in Iran and other Persian architecture in the structure and architecture of the climatic elements-structural (awning) about the investigation. This test also can be used for other cities and places of historical texture of Yazd.

Conclusion
As mentioned, an important element of the native architecture awning and climate are considered that Iran nowadays knowledge making it to oblivion. With this special climatic elements can be revived by the ancient native patterns as well as in the construction of the urban tissue and forming of new concepts that are of interest. In this study, the historical neighborhood of awning plan and valuable knowledge from the perspective of Yazd Sahadan geometry and rectangular proportions of Persia were analyzed. In future research can be found other than to work in Iran and other Persian architecture in the structure and architecture of the climatic elements-structural (awning) about the investigation. This test also can be used for other cities and places of historical texture of Yazd.

Abstract
The Iron Age in the Middle Asia and an important part of it that called Khorasan is a Transitional period between prehistory and historical period. This period always has many ambiguities and questions; Especially in Khorasan, where the lack of archaeological studies is strongly felt. In this area, the Neyshabur Plain has a special position in terms of archeology and is undoubtedly influential in understanding the cultural components of the Iron Age in the region. In the current study, Milad Tape, which is located almost in the middle of Neyshabur Plain, was sampled as a systematic survey. The purpose of this work is to obtain information that can be used to advance the long-term goals of interpreting the Iron Age in Khorasan, especially Neyshabur. In this regard, the most important question is how Iron Age in the perspective of recent studies of Khorasan cultural field. In Milad Tape, whose surface is flat and smooth, sampling of cultural materials has been carried out in the framework of a systematic survey in order to study the Iron Age in a comparative approach with the typology and classification of pottery. Also, by using the settlement pattern of the area and other settlement components of Milad Tape, it is possible to fully examine and read part of the unknown structures of the Iron Age of the Neyshabur Plain and, accordingly, Khorasan. According to the research results, Milad Tape, which has a settlement sequence in the Iron Age, can be interpreted in the framework of the Early to Late Iron Age of the region. Pottery typology studies, also show similarity with the Central Asia Iron Age, which is known as Yaz I to III based on the material cultural of Yaz Depe area. In general, in the comparative approach, Milad Tape samples are closely related to Yaz pottery tradition.
Keywords: Iron Age Khorasan, Neyshabur Plain, Yaz, Milad Tape.

Introduction
Among the archaeology and cultural periods of Khorasan, there is a lack of studies in the second and first millennia BC.  Although the first study of this region that led to the recognition of the Iron Age, dates back to the 1980s (Riccardi, 1980). In recent decades, archaeologists have tried to make the knowledge of this period more complete (Vahdati, 2015, 2018; Basafa, 2021, 2020, 2015, 2016). The most important archaeological investigations consist of Atrak River project in North Khorasan (Dana, 2015 and 2019; Vahdati, 2016), Daregaz Plain (Basafa & Hedayati, 2020), Neyshabur Plain (Basafa, 2017), Roshtkhar Plain (Rezayi, et. al., 2018), Gonabad Plain (Basafa, 2021) and Birjand Plain (Dana, 2014).
From the mentioned researches, it can be understood that neighboring cultures are very important, such as the ancient Dahistan culture in the northeast of the Mazandaran Sea, which can also be seen in the plains of Gorgan and North Khorasan (Lecomte, 2005) and Yaz culture (Kohl, 1984: 193).
In completing the archeological information of Khorasan Iron Age, Neyshabur plain sites are very important because of the location of Neyshabur plain and its environmental potentials (Rezaei & Basafa, 2019). Milad Tape (Fig. 1) is located in this geographical environment, which belongs to the Iron Age. Milad Tape and other sites like Se Tape can show new evidence of local cultures and cultural interactions with Central Asia.
Materials and Methods: This research relies on the material cultures that collected from the systematic survey of site. It’s most important cultural materials are potsherds, were first studied in a statistical approach and then analyzed comparatively in comparison with neighboring cultures.

Data 
In the sampling conducted in Milad Tape, were obtained various stone tools such as blades and chips, metal melting slags, furnace welds and a significant number of potsherds. A total of 1586 pieces of potsherd have been sampled from the surface of the site, and among the three general categories of rim, body and floor, the most abundant pieces belong to the body. From the total samples that can be dated in Iron Age I, the rim has a frequency of 1%, the body 93% and the bottom 6%. In the Iron Age II and III, the rim and the bottom with an abundance of 3% and the body with 93% of the total have the most parts. Among the examples that can be dated in this site, where a comparative approach was used, three periods can be distinguished from the Early to the Late Iron Age. 

Discussion 
Looking at the most important cultural material of Milad Tape, we can say that its pottery components are closely related to Central Asia. In the Early Iron Age, in this site, an important phenomenon is low-quality handmade pottery, which is considered one of the main characteristics of Yaz I. In the middle and Late Iron Age, the previous statements also apply, and its morphology also shows that similarities in terms of construction and form can be seen in Milad Tape pottery in these periods as well. In this context, double-lobe pottery, which is defined as the most important characteristic of Yaz II and III cultures, was produced in a wide range with minor changes in the Neyshabur plain.
In completing the studies, environmental factors are very important, and based on this, Milad Tape is located in the range of 900 to 1200 meters above sea level in terms of height, and in terms of the settlement pattern, it is located in the lowlands of the Neyshabur plain (Fig. 7), which has suitable land for population development. The study of Milad Tape water resources, which undoubtedly played an important role in choosing the location of the sites, shows that there is a direct relationship between the water resources and the location of the site, so that its small distance from the water sources has caused it to grow well in terms of dimensions. Milad is located near Kale-Shure in the center of the plain (Fig. 8) where many waterways and streams flow into it, the most important of which flowed a short distance from the site. This satellite has been able to facilitate access to water resources for agriculture and livelihood. The study of land use (Fig. 9) also shows that Milad is in a good agricultural position and probably suitable water sources have caused agriculture to be carried out by hydroponics in this area. Based on this, the location of the settlement surrounded by suitable pastures has provided the conditions for animal husbandry and livestock breeding for the livelihood of the population of the area. Based on the mentioned materials and in the general view, Milad Tape has created suitable conditions and platform for the use of agriculture in the region. On the other hand, the existence of pastures has provided the grounds for subsistence economy based on animal husbandry. 

Conclusion 
Due to the strategic location of access to water resources and the use of fertile soil, Milad Tape is one of the important sites and settlements in this area, along with other sites, especially Set Tape. By analyzing the cultural materials, a settlement sequence from the Yaz I period and its continuation to Yaz II and III was observed, which shows that it was of special importance in the Neyshabur plain and was efficient in drawing chronological horizons and presenting cultural components along with other sites. The few analyzes of the settlement pattern of Milad Tape also show that suitable water sources were available and the agricultural land was ready. This location selection pattern is also observed in Central Asia. Based on biological patterns, fertile soil, and agricultural use in the effective use of land in the Milad Tape area, it shows that there was a permanent settlement with a livelihood based on agriculture in its settlement area, which may have been three hills. The influence of the cultural characteristics of Central Asia and Yaz culture in Milad Tape, according to the typology of pottery, shows the influence and cultural interactions. 

Acknowledgments
We would like to gratitude and appreciation to the respected of the cultural heritage department chief of Neyshabur city, Mr. M. E., Etemadi, for his support in the field activity.

Abstract
The concentration of activities and sites Iron Age excavations carried out in Iran in the quarter-northwest Iran. It covers the west, northwest, north of the center, and the west bank of the Caspian Sea. The important point is that the chronological basis of the Iron Age in Iran is also based on the excavation of several sites in a small part of the northwest and its extension to the whole of Iran. Thus we see the Iron Age archaeological activities at the eastern part of Iran and especially North East is very unknown. Iran has long been the entry point for people without a nomadic component steppes of northeastern North Asia region is the Iranian plateau. According to written sources the oldest nations that have entered the Iranian plateau, known as the Indo-Iranian or Aryan tribes from the steppes of northern Asia to the south and in the land of the Pamir Mountains to Anatolia widely dispersed. Many scholars consider the gradual movement of these tribes to be from the second millennium. A period that is almost synonymous with the Iron Age in the region. But our knowledge of the Iron Age northeastern Iran today virtually all North Khorasan Province and the northern part of Khorasan Razavi province involved is negligible. This paper is based on the latest research picture of the Iron Age northeastern part of the country, with emphasis on the upper basin Atrak be provided. According to the study and identification carried out in this basin, the Iron Age of the upper Atrak basin is part of the Yaz 1 culture.
Keywords: Northeastern Iran, Iron age, Upper Atrak basin, Yaz 1 Culture, Archaic Dehistan, Settlement Patterns.

Introduction
It has been less than a decade that steps have been taken to understand the Iron Age in Northeastern Iran through surface explorations and excavations. Based on this, it seems that some parts of northeastern Iran are in the cultural area of Archaic Dehistan and another part is in the cultural area of Yaz I (Basafa 2017, Dana & Hejebri Nobari 2019, 2021, Vahdati 2016, 2018). The upper Atrak basin is an almost rectangular valley with a length of 90 km and an average width of 20 km. This region is one of the most important regions of northeastern Iran in terms of population movement because it connects the north of Kopet-Dagh to the interior regions of Iran and the center of the Iranian Plateau (Fig.2). Northeastern Iran has long been the place of entry of nomads from the northern steppes to the inner regions of the Iranian plateau. Due to the geological feature, Kopet-Dagh act as a barrier between the Karakum desert in the north and the fertile areas in the south, which cannot be crossed except through a few natural passages. 
More than 500 sites were identified in the archaeological surveys of the upper Atrak basin, among which 23 sites were dated to the Iron Age (Fig.3).

Iron Age Sites in the Upper Atrak Basin
The 23 Early Iron Age sites identified in the upper Atrak basin are listed in Table 1. In the surface survey of these sites, the only available data was pottery. In all Iron Age sites of this basin, the dominant pottery is Yaz 1 hand-made pottery. These pottery are poorly made, rough and in the range of buff and bright red, and the motifs are usually drawn geometrically with ocher and jujube red colors, and most of them are mixed with grog. 9 of the identified sites can generally be attributed to the Iron Age, and traces of Yaz I painted pottery were not found in the surface surveys. The pottery of these 9 sites are similar in form to the pottery of the Archaic Dehistan culture, but unlike them, they are in the buff and red spectrum.

Location based on ٍlevation Factor
The Iron Age sites of the region are located at an altitude between 1007 and 1718 meters above sea level. The size of the smallest site is 0.01 and the largest is 10 hectares. Examining the Pearson correlation coefficient regarding the area of the enclosures with the height factor shows -/299 (Table 2), which indicates a negative but moderate correlation. This means that as the height above sea level increases, it is expected that the size of the enclosures will decrease due to the limitations of natural factors.

Water Resource Factor
The distance of the Iron Age sites in the region from permanent water sources, including rivers and other running water sources, ranges from 0 to 6395 meters, and their average distance is 1441 meters. Pearson correlation coefficient/313. (Table 2) states that this figure shows the relationship between the direct and average level of significance between the size of the sites of the region with the factor of distance from permanent water sources. 

Land Use Factor
Pearson’s correlation coefficient between the size of the sites of the region with the soil type factor of the location of the sites shows -.054 (Table 2). This figure is weak and small. It is expected that there are large sites in the sedimentary plains and smaller sites on the edge of the plains and mountain slopes, and this is not the case in this area.

Slope Factor
Pearson’s correlation coefficient between the sizes of the sites of the region with the slope factor of the location of the areas is 0.72. (Table 2). The figure shows a very weak relationship between the size of the sites and the degree of slope of their location. 

Slope Direction Factor
Pearson’s correlation coefficient between the size of the sites of the area with the slope direction factor of the location of the areas shows -240 (Table 2). This phenomenon shows that some of these sites have not been used for a long time or that the different slope directions were not so important for the residents of this site in different seasons.

Communication Routes Factor
The sites of the region are located at a distance between 0 and 15355 meters from the main communication routes today. The Pearson correlation coefficient shows -114 (Table 2), this figure shows a very weak and small and inverse relationship. In other words, as we move away from the main communication routes, we should expect the size of the enclosures to decrease and become smaller.

Distribution of Iron Age sites in the Upper Atrak Basin
In this research, in order to obtain the distribution pattern of settlements in the region and to better analyze and understand the distribution of archaeological sites in the region and to find a pattern that fits environmental variables, the statistical method of cluster analysis has been used. Based on statistical analysis and their clustering, three patterns were obtained (Table 3, Chart 1).
Settlement distribution pattern 1: Settlement distribution pattern 1 includes 6 enclosures (Chart 1, Table 3). Due to the location of these types of sites in the landscape of the region and according to the distribution of these settlements on the level of the plain and the highlands, their small size, which is less than half a hectare, the economic method of these habitats can be assumed as temporary and seasonal settlements.
Settlement distribution pattern 2: There are 14 enclosures in this pattern (Chart 1). Due to the location of these types of sites in the landscape of the region and according to the distribution of these settlements on the level of the plains and the highlands, their small size, which is less than two hectares, the economic method of these habitats can be assumed as agricultural and livestock settlements.
Settlement distribution pattern 3: There is only one site in this group, and the reason for their placement in a cluster or separate pattern is its very large area compared to other sites. The size of this site is 2.2 hectares. The characteristics of this site, especially being located at a high altitude and a long distance from water sources and communication routes, and other characteristics show that it is similar to model 1, and only because of the difference in the size of this site, it is placed in a separate group.

Conclusion
The largest sites in the upper Atrak basin (except the IUA03 site) are located almost in a vertical line and very close to each other, Tappe Yam with 10 hectares, Tappe Ja’far Abad with 2.8 hectares and Sofalgaran-e Zadak site with 3 hectares, for a total of about 16 hectares from the total 33 hectares, half of the size of the Iron Age sites cover this basin. Today, these sites are located around the city of Faruj and almost in the middle of the plain. This area can be considered as the crossroads center of important roads in the region.
The important point in the reconstruction of the roads is the mountainous conditions of the region, which does not allow passage anywhere. With these conditions, there is only one possible way in the south, and that is today’s Binalud-Shah Jahan road, which goes from Quchan to Sabzevar. Near this road, there is Tappe Golshan Abad, which is actually located in the entrance area of this mountain pass. 
However, it is a little difficult to determine the northern route to pass Kopet Dagh and go to its north due to the number of valleys and the connection of some valleys with each other. By carefully examining the existing routes in the area and their connection with the Iron Age sites, a route is suggested that includes the sites of Tappe Yam, Dalan Tappe Kukach, Dalan Tappe Bozorg and Unnamed Tappe of Milanlu.
The western road along Atrak River connects the upper basin to the middle Atrak basin.
The eastern road also continues to the Kashaf River basin and the Mashhad plain without any natural obstacles.
Today almost all researchers agree that the people had Yaz I culture, nomads. Since Yaz I remains in a wide area of Greater Khorasan and the southern parts of Transoxiana, the route of population migration will inevitably pass-through Greater Khorasan through the north-south routes that connect the steppe regions of North Asia to its inner regions in the Iranian plateau. In this view, the upper Atrak basin is located in the area of Yaz I pottery culture, and due to its strategic location, it plays a very important role in the arrival of people with Yaz I culture to the inner parts of the Iranian plateau.

Abstract
Since during this era, Yazd involve less social vicissitudes and because of the training performance in the middle ages of Islam, the tradition of school building that started from the Seljuk dynasty in a quiet environment. Being away from security concerns and creating relative peace during the middle ages and the high acceptability of building a school has provided the emergence of its construction in the city of Yazd. Therefore, considering the numerous references to the schools of this era in Yazd historical texts and the absence of research on the architecture of the historical schools of this city, the article describes the building features of these ones. Answering this question is the purpose of this article: what are the features of school mentioned in the historical texts and what were components of spatialization and arrays of these schools? The research method of this article is based on historical documents and library studies. This is a historical-analytical research and its main reference is historical sources such as books of Ta’rikh-e Yazd (History of Yazd), Ta’rihk-e Jadid Yazd (New History of Yazd) and Ja’me’ Mofidi. Historical schools are explored in this article from the aspects of architecture, decoration, function and constructers. The results of this research show that schools in Yazd have local and indigenous features that were prevalent in this area, before Ilkhanate dynasty, and the influence of local architectural and decoration methods on the school building is undeniable according to historical sources. Schools have a lot in common with the architecture of mosques, houses and Khaneqahs (monasteries) considering that schools are usually used as a graveyard, these buildings can be classified as burial schools, and finally, various classes of people have played a major role in building these historical schools as founders.
Keywords: School Architecture, Muzaffarids, Timurid Era, Yazd.

Introduction
In the 77-year rule of Muzaffarids dynasty (718-785 A.H.), in addition to the proceedings taken in the field of city development and increasing the area of battlement, basic measures were done in the field of the construction of religious schools and Khaneqahs (monasteries), so that it can be said that this region reached the glory of cultural prosperity within itself (Shamseh, 2006, P.31). Muzaffarids rule, whose beginning coincided with the end of the Ilkhanate era, should be considered one of the most powerful, best and most prosperous governments in the middle history of Iran, because at that time nowhere in Iran had cultural, social and economic development as much as their territory, and the importance of cultural affairs and attention to science and schools was so much that most possession of the desert region, means water aqueducts and gardens were dedicated to school, and this was apart from the devoted Bazaars and Caravanserais. (Mohammadzadeh & Razavi, 2011, P.21). It has been mentioned in various sources that nearly one hundred schools, two hundred Gonbadkhaneh (domes) and Khaneqahs (monasteries) as well as twelve mosques were built in the 8th century A.H. in Yazd city (Masahebi Naini, 1997, P.302), from the abundance of schools that were built in Yazd, Kerman, Shiraz and other cities during this period, it is possible to understand the level of people’s attention and dedication to the study of religious sciences. (Setoodeh, 1967,P.274). Muzaffarids kings, as well as the great personalities of this era, paid special attention to religious buildings such as mosques, schools and Dar-al Siadeh {a porch that is a gathering place for Seyeds and followers of Imam Ali (peace be upon him)}. In fact, the movement that started during the era of Khajeh Rashid- al Din with the construction of building such as “Gonbad Soltaniyeh” and “Rabَ –e Rashidi” ,other schools and religious places and the tradition of endowment became common in them; then in this era, it grew and expanded significantly, so that whenever there is talk of building a mosque, an order was given to build a school next to it, and endowments were also awarded to (Rais- al Sadat, et al., 2011,P.96). The cultural and artistic actions of Muzaffarids rulers caused the growth and development of Islamic culture and civilization, which provided the basis for its connection with later periods, so that the Timurid and Safavid eras, which are considered the glory the growth and development of Islam can be attributed to Muzaffarids proceedings. (Sarabadani, 2010,P.102). 
Questions of Research: 1- What architecture and arrays do the Yazd schools have, referring to historical texts? 2- What developments and functions do schools have?
Method of Research: The current research has explained the architecture of the historical schools of Yazd from the Ilkhanid to the Timiurid era with an analytical historical approach. In this research, the necessary historical information has been collected, especially from local historical texts such as Ta’rikh-e Yazd (History of Yazd), Ta’rikh Jadid Yazd (New History of Yazd) and Ja’me’ Mofidi, because these texts refer to different schools that were used in that era, but today there are no traces of some of those schools. Discussions such as examining architectural spaces, decorations, performance, development and school constructer are the subjects of this research.

Conclusion
Construction of Muzaffarids and Timurid Schools in Yazd continues the school-building tradition that began in the Kakuyids dynasty. The speed of school-building in Yazd during the Muzaffarid era is very intense, but it moderates during the Timurid dynasty. The concern of school-building in this era includes different strata of society from the aristocratic and royal class to religious scholars and all of them involved in this noble tradition. These schools were mostly built for the burial place of their founder after their death, and in order to legitimize it, the tomb was dome-shaped. For this reason, the Gonbadkhaneh (dome) is an integral part of Yazd schools, and in some ones, they are satisfied with the construction of this morsel. Parts such as elongated Soffeh (terrace), the pair of minarets on the façade, Tanabi (a large room in the middle of the building, without a window or door, surrounded by other spaces), and dome usually with an array, the central courtyard, the Baghtche-e Moshajar (a garden planted with different trees) at the end of the building are considered parts of the school spaces of this era. Utilizing the native structure and decoration methods in “Gonbadkhaneh and Tanabi”, and local architectural mechanisms all give these schools a regional display. The schools of this era with local and indigenous basis have adopted some of their architectural and array features from the era of “Kakuyids and Atabakan”. According to the remaining schools and with the help of historical texts, a general model for schools can be presented (Scheme 1). Schools like mosques and houses of this era, have a similar pattern, although there are common spaces between these functions. The existence of the elongated and lofty porch, which is usually located on the south facade, a small and compact yard,”Gonbadkhaneh or Tanabi” next to or behind the south porch, three-part divisions similar to mosques in the view facing the yard, the presence of a rear garden behind the porch or Gonbadkhaneh like the houses or Khaneqahs, creating a linear structure in spatial organization and many other cases, all confirm this paradigmatic similarity. The tradition and pattern of building these schools were forgotten after the abundance of school building in the Timurid era. The studies and researches of this article can be extended to the Safavid to Qajar era as well, so that a detailed understanding of the architecture and school building method in Yazd throughout history can be obtained through it.

Abstract
So far, the settlements of the Iron Age of Sarakhs plain have not been studied archaeologically, and on the other hand, the Iron Age of Plain Sarakhs represents the Yaz culture in the region and owes its name to the Yaz Hill area in southwestern Turkmenistan. Studies of the Iron Age culture of the Sarakhs Plain can reveal the basic information of this period and help to understand the general Iron Age of the Iranian plateau and the land of Turkmenistan. The purpose of this study, while identifying Iron Age settlements, is to analyze environmental factors to explain the patterns of Iron Age settlements in the Sarakhs plain. For this purpose, a field study was conducted in the plain and by studying the collected works and library studies. It was found that 16 sites have Iron Age artifacts. Some settlements are single-period and some have chronological sequences. The necessity of the present study is the unknown culture of the Iron Age of Sarakhs plain. Therefore, the identified Iron Age settlements of Sarakhs plain were analyzed from the perspective of environmental factors and their role in explaining settlement patterns. The output of maps and data of Iron Age settlements in Sarakhs plain showed that among the environmental factors influencing the determination of settlement patterns, Distance and proximity in the range of 300 to 900 meters above sea level, Location of settlements along the rivers of Sarakhs plain (linear settlement pattern) and large urban or rural centers (Mir Ahmad and Bazangan) up to 65 hectares (central location), Communication routes (communication route of Greater Khorasan in the Iron Age), In the formation and distribution of settlements have been more influential than other environmental factors. One of the most important results of the present archaeological study, Identifying the Iron Age settlements represents the culture of Yazd Plain Sarakhs, which will be used to measure the distribution of Iron Age settlements in this area to draw a very accurate and comprehensive perspective for understanding the social life of the people of that period.
Keywords: Archaeology of Northeast Iran, Sarakhs Plain, Iron Age, Yaz, Establishment Patterns.

Introduction
Sarakhs Plain as the research site has been a favorable habitat for the formation of various human communities due to its natural potential and optimal environmental conditions, including altitude, suitable soil and relatively favorable weather conditions. The study of the collected works of the Iron Age in the Sarakhs plain through archaeological investigation shows that some cultural traditions of southwestern Turkmenistan (Yaz culture) of the Iron Age were prevalent in the Sarakhs plain, and this plain is probably the link between the southwest of Turkmenistan and the northeast of Iran and culture. Its pottery is noticeably and significantly influenced by the culture of southwestern Turkmenistan (Yaz area). At the end of the Bronze Age, a new culture covers Central Asia and Southwest Turkmenistan, which is known as the Yaz culture, and it borrows its name from the Yaz Tepe area, located in the southwest of Turkmenistan and present-day Ashgabat. The pottery of this period is generally simple and in red, pea and gray colors.

Materials and Methods
The current research is based on the purpose of fundamental research and based on the nature and method of descriptive and analytical research. The method and tools of data collection in this research have been done in two ways: documentation and field activities. In the field survey, while surveying the plain in the region and identifying the settlements, the required archaeological information and evidence (pottery) were collected from the said sites and recorded in the database. In order to obtain scientific answers, the conventional methods of establishment patterns and GIS and Spss analyzes were used in this research, and after preparing the outputs and maps, two descriptive and inferential methods were used to analyze the questions.

Data
Our information about the land of Turkmenistan is based on the findings of Russian and Turkmen archaeologists’ excavations in the region and presenting their latest findings and reports, some of which have been translated and used, which can be used as library studies. he remembered at this stage, all written sources, images and maps were collected and analyzed. In the field investigation, while surveying the plain in the region and identifying the settlements, the required archaeological information and evidence (pottery) were collected from the mentioned areas and recorded in the database.

Discussion
At the end of the Bronze Age, a new culture covers Central Asia and Southwest Turkmenistan, which is known as the Yaz culture, and it borrows its name from the Yaz Tepe area, located in the southwest of Turkmenistan and present-day Ashgabat. The iron settlement patterns of the Ferns Plain have been formed with the influence of these environmental and natural factors. With these interpretations and based on this, in the current research, the relationship of each establishment and establishment patterns with respect to major and main environmental variables have been analyzed and measured.

Conclusion
During one season of archeology field investigation in Sarakhs Plain and study of collected works and library studies, it was obtained that the extent and continuity of culture in the place, the proximity and location of the settlements along the Tajan, Harirood, Kashafrood, Shurluq and Chakoodar (linear settlement model) in all the geographical directions studied in Sarakhs Plain showed that This plain has a direct relationship with the facilities and environmental conditions, such as the quantity and quality of settlements, the frequency and increase of the Iron Age settlements of the Sarakhs Plain compared to the previous period in terms of population density and the gradual complexity of the relationships between settlements and the relationship with the environment and Direct exploitation of water resources for agriculture and animal husbandry has been on the rise and in the last period of the Iron Age It increased all of a sudden and it is through this plain that this culture spread to other areas of South Khorasan and the plateau of Iran. In order to analyze and explain the settlement patterns of the Iron Age of Sarakhs Plain, a test was conducted between various ecological variables with the distribution of settlements based on the Pearson correlation coefficient and the effect of the significant level. The result of this study was the identification of 16 settlements from the Iron Age, which can be considered and evaluated from the perspective of environmental factors and the size of the sites. In the analysis and explanation of the Iron Age settlements in the Sarakhs Plain, the height above the surface of open water, the distance from rivers and other water sources, and the distance from communication routes with Pearson’s correlation coefficient with a significant level, had the greatest impact, and the other variables each implied They have left a significant impact on the Iron Age settlements of the Ferns plain. The results of Pearson’s correlation coefficient indicate that the distribution of Iron Age settlements in the Sarakhs Plain are regularized in relation to environmental and ecological capabilities and limitations, and these factors have played a significant role in the spatial distribution, determining the type of function and the importance of Iron Age settlements in the Sarakhs Plain. This has had an undeniable effect on the distribution of the population, the type of livelihood, the settlement patterns and their bodies. The Iron Age settlements that can be seen in this plain are the result of the specific geographical conditions of the region.

Abstract
Kamaliyeh Collection is one of the most significant remnants dating back to the first half of the 8th century AD in the city of Yazd. Despite its historical and archaeological importance, no studies have been conducted on this collection. Through systematic efforts carried out in the 1970s, 24 intact or broken tiles with luster patterns depicting plants, birds, and inscriptions in the form of star-shaped (kokabi) motifs were discovered. Since there have been no published studies or reports on these tiles, the present research aims to examine their visual, content, and probable origin characteristics based on historical and architectural evidence through a comparative analysis with existing samples. Therefore, the following research questions are addressed: 1. What information can be obtained from the patterns and inscriptions on luster tiles of Kamaliyeh School in Yazd? 2. Based on the visual features of the patterns, which centers of luster tile production do the identified tiles belong to? The current study employs a documentary and descriptive-historical approach, along with analytical and comparative methods, to logically address the research questions. The results indicate that the patterns on the tiles include floral designs (three pattern models with a lotus flower motif and Shah Abbasid buds around the center of the tile), birds (a flying eagle with spread wings among floral patterns), and inscriptions (Quranic verses with themes of victory, admonition, sustenance, and Persian literature derived from Ferdowsi’s Shahnameh and Shams Tabrizi). These designs on the tiles serve specific religious, belief, and burial functions within the collection. Moreover, considering the significant similarity in pattern models, designs, and inscriptions among the studied samples, it is likely that Kashan was the major center for tile production. This is plausible considering the strategic communication route from Rey to Kerman passing through Kashan to Yazd for the distribution of luster tiles.
Keywords: Kamaliyeh School, Yazd, luster tiles, floral patterns and inscriptions, Kashan.

Introduction
The Al-Muzaffar era is one of the significant historical periods in the city of Yazd, ruling over the southern and central regions of Iran in the 8th century AD. The flourishing construction and development in Yazd during this period were substantial enough to lead to the expansion of its citadel and wall in several stages, particularly the relocation of some city districts outside its fortifications (Kateb, 1966: 69).
Luster tiles were crucial architectural elements used in both religious and non-religious structures during this period, adorning interior or exterior facades and mihrabs. In the Ilkhanid era, some religious buildings in cities, including the mausoleums of Shiites, were adorned with luster artworks. It seems that Yazd was one such city, gaining increased significance during the Middle Islamic centuries with the rise of the Al-Muzaffar dynasty. The Al-Muzaffar rule in Yazd, due to their support for the arts and culture of the Yazdi people, contributed significantly to the prosperity and development of the city. This support was to such an extent that one of the shining cultural periods in Yazd’s history is attributed to the reign of the Al-Muzaffar dynasty (Kateb, 1966: 89).
One notable feature of this era was the establishment of numerous Dar al-’Ilms (houses of knowledge), with Yazd earning the title of Dar al-’Ilm. Various sciences were taught in schools, mosques, Dar al-Siyadehs, and Khanqahs (Mirhosseini, 1993: 58). Another characteristic of this period was the flourishing of Sufism and the creation of various khaneqahs in Yazd and its surrounding regions, including the Rastaq Khanqah (Ibid: 265). These institutions made utmost efforts to create robust architecture and embellish it with the finest elements. One of the historical buildings of great value, adorned with remarkable luster tiles, is the Kamaliyeh Collection or Shah Kamal in Yazd. This structure was constructed in the year 720 AH by Khwaja Kamal al-Din Abu al-Ma’ali.
In the early 1970s, during organizational efforts, a number of luster tiles were discovered installed above a wall and are currently preserved in the secure storage of the Cultural Heritage, Handicrafts, and Tourism Organization of Yazd Province (Afshar, Vol. 2, 1996: 613). Although these objects have been organized and cataloged in recent years, a comprehensive scientific study on these tiles and their origin has not been conducted so far. Therefore, the present research aims to provide logical answers to existing ambiguities regarding the origin and nature of these tiles by studying their patterns and inscriptions and comparing them with contemporary and similar samples.

Discussion and Analysis
Tile Shape: The identified luster tiles in this structure are octagonal, a model commonly used in combination with cross-shaped (Chelipa) tiles with turquoise single-glaze enamel in the decoration of religious Shia buildings, such as the shrines of Imam Reza (AS) and Hazrat Masoumeh (SA) or Takht-e-Soleiman, dating back to the 7th century AD. In their decoration, plant, animal, and inscription motifs have been employed.
Patterns: The bird pattern of a flying eagle is one of the common motifs in the decoration of these tiles, appearing in the midst of floral patterns with outspread wings. Comparable examples can be identified among luster vessels produced in the city of Kashan. Among the comparable examples, luster star-shaped tiles in the Museum of Islamic Art in Istanbul, a sample from Takht-e-Soleiman in the British Museum, samples from the Sackler collection, the Victoria and Albert Museum, and the Freer Gallery of Art, all date back to the Ilkhanid period and were produced in the city of Kashan.

Floral Patterns
Most of the studied tiles depict a blue lotus flower with dense branches and leaves covering the entire central area of the tile. The spaces between the branches and leaves are filled with small circular motifs arranged in a band. While the floral patterns show overall similarity, careful examination reveals at least three design patterns among them: 1) a floral design with a Shah Abbasid flower at the top with branches and leaves on both sides (examples 16-1), 2) a Shah Abbasid flower in the center with dense branches and leaves around it (example 17), and 3) a small hexagonal flower at the top with two Shah Abbasid flowers on either side (example 20). Among these three patterns, the similarities between patterns 1 and 2 with samples from the Cambi Auction House in Genoa, Italy, a specimen from Sultanabad, and a sample preserved in the Victoria and Albert Museum are noteworthy.

Inscriptions
All the studied tiles include outer margins adorned with inscriptions. Among the 24 studied tiles, 18 are adorned with Quranic verses, 6 with Persian verses, 5 with verses from the Shahnameh, and one of the samples features verses from Shams Tabrizi.
The detailed analysis of the identified luster tiles in the Kamaliyeh Collection provides valuable insights into the patterns, shapes, and inscriptions used during the Al-Muzaffar era in Yazd. Comparisons with contemporary examples from Kashan and other regions contribute to a better understanding of the cultural and artistic context of this historical period.

Conclusion
The Kamaliyeh School is one of the significant educational institutions of the Ilkhanid period in the city of Yazd, expanding its influence in subsequent eras. It appears that luster tiles were utilized in adorning certain sections of the building, though the exact purpose of their use remains unclear. In the explorations conducted in Yazd, few traces of luster tiles have been discovered, and the collected samples from the Kamaliyeh School are the most important luster artifacts found to date. A crucial point is the function of these tiles, as research suggests that they are generally associated with religious beliefs or identity burial practices and have been predominantly used in shrines or burial sites. In the Kamaliyeh Collection, it is probable that they were used in the burial chamber, similar to examples found in the Seyyed Shams al-Din and Seyyed Rokn al-Din shrines in Yazd. While the samples from Takht-e-Soleiman primarily depict a royal structure (palace), the presence of religious color throughout the entire collection justifies the usage of such ceramics. Moreover, considering the Kamaliyeh Collection’s diverse functions, including a khanqah, school, and dome, and its educational-religious approach, the use of these types of tiles was likely a common practice during its time. The results also indicate the use of three categories of patterns: floral, animal, and inscription motifs. The floral patterns mostly depict a blue lotus flower, which has a long history in Iranian culture and has been used in various arts, including carpet weaving, under different names like “Shah-Abbasi flower.” With regards to the better-preserved examples, at least three design patterns emphasizing the Shah Abbasid flower are conceivable. The bird pattern of a flying eagle, present in the midst of floral patterns and on the central area of octagonal tiles, is surrounded by inscriptions in though script on the outer margin. The inscriptions draw inspiration from two different sources, the Holy Quran and Persian literature. Quranic inscriptions are categorized into several groups based on content, and the presented concepts can be considered relevant to the building’s function. Persian verses are mostly related to the Shahnameh, with only one case influenced by the poetry of Shams Tabrizi. Through a comparison of form, design patterns of motifs and inscriptions, and even the colors used, with examples preserved in museums such as the British Museum, the Museum of Islamic Art in Istanbul, the Sackler Collection, the Victoria and Albert Museum, and the Cambi Auction House in Genoa, it can be asserted that the probable place of production for the luster tiles of the Kamaliyeh School was the city of Kashan.