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EN
The discovery of relics initially interpreted as a glasswork from the 11th century that occurred in Kruszwica in 1953 was followed by increased interest in glassware found at excavations in Poland. Even though the later laboratory analyses from 1964 revealed that the discovered furnace was not directly connected with glassmaking, studies on production of glass became more frequent. They were conducted on two levels: 1. by institutions related to glass industry, 2. by archaeologists and historians in cooperation with chemists, physicians and technologists. The large amount of source material that consisted of glass-related finds obtained during the millennial excavations as well as establishing a research team comprised of representatives of different disciplines allowed for interdisciplinary studies on glassware and relics of glassmaking. They led to addressing theoretical foundations and methods of research on this category of finds. Numerous studies, including books and papers, were also published and a new scientific discipline, history of glass, was born in Poland.
EN
The author draws upon her earlier published work, in which a classification and interpretation of selected categories of glass production relics had been put forward. In view of the fragmentariness and sporadic occurrence of written sources on glass-making in antiquity and Mediaeval times, archaeological records must remain the basis for research on this sort of manufacturing. In turn, the specific nature of the material and the complexity of the issues involved demand a somewhat modified research approach, different from that applied to ready-made glass products. While the present author debates some of the opinions of various scholars, she has taken advantage of new and varied records to document her own suggestion of a classification mentioned above. She also takes up some issues regarding research methods involved in the study of local glass production. In her opinion, the ancient and early mediaeval glass workshop was characterized by the following assemblage of categories of finds: production relics (buildings, other roofed structures, furnaces, hearts, tools, raw materials, slag, glass mass, waste products), half-products, ready products and the other. The author goes on to describe summarily the functioning of the ancient glass-making craft and presents examples of waste in the three subcategories. In discussing these finds she also considers the possibilities for interpreting them as the remains of different types of workshops.
EN
A fragment of the upper part of a beaker of transparent olive-green glass decorated with a series of non-transparent red-brown glass trails was discovered in a 4th/5th c. assemblage at the Byzantine fortress in Odărci (northeastern Bulgaria). The space between the two sets of trails is filled with two rows of letters in the Greek alphabet, which were painted with a color that is now white. The body of the vessel and the ornament were both made of glass of the Na2O · CaO · Al2O3 · SiO2 chemical type. The body (matrix) glass was colored with oxides of iron (Fe2O3) and titanium (TiO2), that of the ornament with oxides of iron (Fe2O3), manganese (MnO) and copper (CuO). The results of a comparative analysis of sum totals and ratios of main glass-forming components and the quantitative content of different components in the glass of vessel from Odărci, compared to objects from other regions, appear to indicate that the glass of beaker was melted in a center somewhere in southern Europe or in Mediterranean center (in the late Roman or early Byzantine period).
EN
In 2015, Stanisław Tabaczyński, full member of the Polish Academy of Sciences, out-standing Polish archaeologist, celebrates 62 years of research. He has participated in archaeological research in Poznań, Wrocław, Biskupin, Kołobrzeg, Nakło and Grody Czerwieńskie (Cherven towns). For a number of years he was in charge of the excavations in Sandomierz. He took part in fieldwork on Torcello Island in the Venetian Lagoon, where an ancient glassworks was discovered, as well as at Castelseprio and other sites in Italy, France and Algeria. Many of his scientific initiatives concerned the theory of culture and methodology of archaeological research. He has published extensively and is a member of international scientific institutions, and has been honored with many awards.
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