درخت حوزه‌های تخصصی

This study presents the analysis of nineteen glass samples from Jorjan (northeastern Iran), dating to the Early Islamic period, using Laser-Induced Breakdown Spectroscopy (LIBS) as a first approach. While LIBS allowed rapid screening of elemental patterns, its quantification is not yet fully mastered; therefore, complementary SEM–EDXS analyses were performed for comparative purposes and validation of the results. Both methods consistently show strong calcium (Ca) and potassium (K) with variable sodium (Na), indicating the dominance of plant-ash flux technology and aligning with the well-known transition from natron to plant ash in the 8th–9th centuries CE. Variability in Na (and minor Al) intensities points to multi-source raw materials and highlights Jorjan’s role in regional production and exchange along the Silk Road. We also provide an integrated spectral comparison, group the assemblage by Na and Ca peak strengths, and discuss the analytical and heritage-conservation advantages of LIBS—when supported by SEM–EDXS—for the study of archaeological glass.

After Arab invasions and territorial expansion in Sassanian-era Iran, Iranians resisted Umayyad and Abbasid caliphs due to bias and discrimination. Uprisings against biased Arab rulers reduced their control over the Islamic Caliphate's eastern borders, paving the way for local government formation and independence. The Abbasid caliphate, facing challenges in the west and engaging with the Byzantine Empire, was alarmed by emerging local governments like the Tahirids, Saffarids, and Samanids. To maintain influence, the Abbasid caliphate considered granting conditional independence to these regions. The Ghaznavid rulers, originally prominent commanders in the Abbasid army, grew and trained within its military structure. Supported by the people and their soldiers, they pursued independence, breaking allegiance to Baghdad and establishing their government. Initially part of the Abbasid army, these rulers, including Ghaznavid emirs, moved eastward due to conflicting interests with the Baghdad caliphate. There, they formed semi-independent structures to maintain influence.In the eastern borders, where political systems like the Ghaznavids relied on military power, the army (Sepah) and militarism played a crucial role in historical research. The central question explores how the military system and militarism in local governments, such as the Ghaznavids, contributed to their formation, development, and expansion during the early Islamic centuries. Research reveals the Ghaznavid government's military system and militarism were modeled after predecessors like the Abbasids, Umayyads, and Sassanians. Local governments like the Tahirids and Saffarids significantly influenced this evolution. Over time, Ghaznavid rule underwent fundamental changes in the army and militarism, reaching maturity in response to evolving needs.

Safavid and Qajar rulers, following an enduring tradition, inscribed royal decrees on stone monuments concerning issues such as tax exemptions and reductions. These inscriptions served to preserve the king’s direct voice as an authoritative document, aiming to safeguard a just fiscal system, prevent corruption among officials, avert potential uprisings caused by rising taxation, and reinforce the image of a legitimate and benevolent monarchy opposed to innovation and injustice. This study examines the extent to which Safavid decrees retained their authority and effectiveness during the reign of Nāṣer al-Dīn Shāh Qajar, particularly in the context of the interaction between the state and society. The research is based on primary documents and sources, applying a historical-comparative method and content analysis. The findings reveal that Safavid decrees on exemptions and tax reductions, though inscribed as “perpetual,” did not remain effective in practice. With the dynastic shift, and despite the people’s efforts to preserve documents and demand their enforcement, these decrees rarely yielded favorable outcomes, except in cases where the Qajar state itself benefited from their implementation.