درخت حوزه‌های تخصصی

Climatic events, especially severe droughts, have played a key role in cultural evolution and the challenge of civilizations. Climate change, which affects the natural resources and, consequently, the health and subsistence system of human societies, can lead to increased violence, migration, war, and the spread of epidemics. The main purpose of this study is to investigate the possible effects of climate on important events of the Sassanid era. Extensive regions of the Near East and Central Asia have been more vulnerable to droughts, which often recurred during cooling periods, due to semi-arid to hyper-arid environmental conditions. From the second half of the fifth century AD with the beginning of the cold event of the early Middle Ages, the occurrence of droughts and cold waves caused famines and epidemics. These tensions seem to have triggered many social and political events in the Sassanid realm and neighboring regions. These conditions in the sixth and seventh centuries AD caused the gradual decline and eventual fall of the Sassanid government due to Arab invasions. Historical and paleoclimate studies show that successive wars with Central Asian invaders in dry periods, and the frequent outbreak of plague associated with falling temperatures, especially following the floods of the Tigris and Euphrates rivers in AD 628, were affecting factors in the dynasty’s weakness and collapse. Besides, some civil wars and revolts, such as the Mazdaki movement, can be considered as indirect effects of climate tensions that contributed to the gradual decline of the Sassanid Empire. 

A regular hexagon is one of the shapes introduced in Plane Geometry and refers to a hexagon with equal sides wherein the size of each angle is 120 degrees. This geometric shape, which can be quickly drawn today, was constructed over a long period in the millennia BC In the Late Neolithic period in Mesopotamia, the primary geometric shapes, including triangles, quadrilaterals, arcs, and circles, were additionally painted on the surface of pottery ware. Naturally, these shapes had been initially drawn by hand, and the sides of the polygons were not comprised of straight lines, or the circles had not been drawn perfectly. However, in the Chalcolithic age, geometric shapes moved away from handmade forms and approached standard ones. This standardization was not possible without drawing tools. In the meantime, the role of compasses or other objects with a similar use was of utmost importance because drawing a circle with such tools paved the way for drawing regular polygons. In fact, from the Late Neolithic, handmade triangles and arcs in the Near East, the first regular hexagon in the late second or the early first millennium emerged over several thousand years. Constructing this geometric shape with the help of standard circles and arcs has been well documented in the Near Eastern archaeological evidence. On the other hand, regular hexagons have been attributed to the second half of the first millennium in the history of mathematics. Therefore, this study reflected on the construction process of this geometric shape and dated its drawing hundreds of years back.

Jungs are manuscripts or collections of documents that contain a selection of historical, literary, religious, and scientific documents and texts. Ahmad Gholam’s Jung is from the second half of the Safavid period, especially from the late Safavid period (simultaneous with the Afghan invasion) and contains documents from this period and earlier periods. Its structural features consist of physical and formal dimensions such as the components used, the way letters are written and arranged, and their explanation.The achievement of the present article expresses the importance of historical values of the mentioned manuscript from a structural point of view. The research method used in this research is formal analysis with a phenomenological approach (analysis and empirical analysis and direct with a critical approach) and with reference to the present manuscript.

This article presents documents on the aftermath of a diplomatic affair from 1705, which was engineered by Safavid Iran’s grand vizier Muhammad Mumin Shamlu and which was the last of his undertakings to reorient relations with the Ottoman Empire. It was a part of his policy played out as several faits This article presents documents on the aftermath of a diplomatic affair from 1705, which was engineered by Safavid Iran’s grand vizier Muhammad Mumin Shamlu and which was the last of his undertakings to reorient relations with the Ottoman Empire. It was a part of his policy played out as several faits accomplis unfolding at the same time and aiming to embitter Ottoman-Safavid relations, which had reached a formal alliance over the last decade. Starting out under the guise of a religious gift-giving, this initiative from the Iranian capital Isfahan to Prophet Muhammad’s shrine in Ottoman-controlled Medina first slighted the Ottomans’ lordship rights in the Hejaz and therefore became blocked by the Ottoman authorities in Medina as well as the digninaties in Constantinople. But soon, it grew into a subject of diplomatic correspondenceand thenbecame entangled in a robbery reaching out to Mecca and Baghdad, whose prosecution spread further to Constantinople, Cairo, Damascus, and the eastern Mediterranean waters. Even after the affair was put to rest, Ottoman-Safavid dealings did not heal from the harm done by Muhammad Mumin Shamlu’s succesive thrusts to undermine the cooperation of the 1690s.The peace outlived Beygdilli-Shamlu’s term as grand vizier, but he succeeded in downgrading it from an official brotherhood to a bare state of nonaggression. accomplis unfolding at the same time and aiming to embitter Ottoman- Safavid relations, which had reached a formal alliance over the last decade. Starting out under the guise of a religious gift-giving, this initiative from the Iranian capital Isfahan to Prophet Muhammad’s shrine in Ottoman-controlled Medina first slighted the Ottomans’ lordship rights in the Hejaz and therefore became blocked by the Ottoman authorities in Medina as well as the digninaties in Constantinople. But soon, it grew into a subject of diplomatic correspondenceand thenbecame entangled in a robbery reaching out to Mecca and Baghdad, whose prosecution spread further to Constantinople, Cairo, Damascus, and the eastern Mediterranean waters. Even after the affair was put to rest, Ottoman-Safavid dealings did not heal from the harm done by Muhammad Mumin Shamlu’s succesive thrusts to undermine the cooperation of the 1690s.The peace outlived Beygdilli-Shamlu’s term as grand vizier, but he succeeded in downgrading it from an official brotherhood to a bare state of nonaggression.

In the sixteenth century, the strategic region of the Caucasus had a set of political, economic, transportation, and religious benefits for both the Safavid and Ottoman governments that led the two powers to compete for profound influence and attention in the region. During this period, when some weak and unstable kings such as Ismail II and Muhammad Khudābanda came to power, lack of strength and better performance caused the Ottoman government to grasp the most of the opportunity to extend their influence over the Caucasus. This study aims at investigating the geographical location of the Caucasus considering the Safavid diplomatic policies and the challenges between the Safavids and the Ottoman Empire through analyzing historical data and library studies. Descriptive data analysis has been considered as the method utilized for this research. The research findings indicate that the ineffectiveness of Safavid foreign policy at this time and the consequence of this policy would have an inevitably negative impact on maintaining and controlling the Caucasus. As a result, this policy would provoke the Ottoman invasions, leading to the occupation of some parts of the Caucasus.