Hedwig Glass
Hedwig glasses or Hedwig beakers are a type of glass beaker originating in the Middle East or Norman-Arab-Byzantine culture, Norman Sicily and dating from the 10th–12th centuries AD. They are named after the Silesian princess Hedwig of Andechs, Saint Hedwig (1174–1245), to whom three of them are traditionally said to have belonged.Ettinghausen and Grabar 196-7 So far, a total of 14 complete glasses are known.Wedepohl and Kronz The exact origin of the glasses is disputed, with Egypt, Iran and Syria all suggested as possible sources; if they are not of Islamic manufacture they are certainly influenced by Glass in Islamic culture, Islamic glass. Probably made by Muslim craftsmen, some of the iconography is Christian, suggesting they may have been made for export or for Christian clients. The theory that they instead originate from Norman Sicily in the 11th century was first fully set out in a book in 2005 by Rosemarie Lierke, and has attracted some support from specialists. All ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Hardstone Carving
Hardstone carving, in art history and archaeology, is the artistic carving of semi-precious stones (and sometimes gemstones), such as jade, rock crystal (clear quartz), agate, onyx, jasper, serpentinite, or carnelian, and for objects made in this way. Normally the objects are small, and the category overlaps with both jewellery and sculpture. Hardstone carving is sometimes referred to by the Italian term ''pietre dure''; however, ''pietra dura'' (with an "a") is the common term used for stone inlay work, which causes some confusion. From the Neolithic period until about the 19th century such objects were among the most highly prized in a wide variety of cultures, often attributed special powers or religious significance, but today coverage in non-specialist art history tends to be relegated to a catch-all decorative arts or "minor arts" category. The types of objects carved have included those with ritual or religious purposes, engraved gems as signet rings and other kinds of seal ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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British Museum
The British Museum is a Museum, public museum dedicated to human history, art and culture located in the Bloomsbury area of London. Its permanent collection of eight million works is the largest in the world. It documents the story of human culture from its beginnings to the present.Among the national museums in London, sculpture and decorative art, decorative and applied art are in the Victoria and Albert Museum; the British Museum houses earlier art, non-Western art, prints and drawings. The National Gallery holds the national collection of Western European art to about 1900, while art of the 20th century on is at Tate Modern. Tate Britain holds British Art from 1500 onwards. Books, manuscripts and many works on paper are in the British Library. There are significant overlaps between the coverage of the various collections. Established in 1753, the British Museum was the first public national museum. In 2023, the museum received 5,820,860 visitors, 42% more than the previous y ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Venice
Venice ( ; ; , formerly ) is a city in northeastern Italy and the capital of the Veneto Regions of Italy, region. It is built on a group of 118 islands that are separated by expanses of open water and by canals; portions of the city are linked by 438 bridges. The islands are in the shallow Venetian Lagoon, an enclosed bay lying between the mouths of the Po River, Po and the Piave River, Piave rivers (more exactly between the Brenta (river), Brenta and the Sile (river), Sile). As of 2025, 249,466 people resided in greater Venice or the Comune of Venice, of whom about 51,000 live in the historical island city of Venice (''centro storico'') and the rest on the mainland (''terraferma''). Together with the cities of Padua, Italy, Padua and Treviso, Italy, Treviso, Venice is included in the Padua-Treviso-Venice Metropolitan Area (PATREVE), which is considered a statistical metropolitan area, with a total population of 2.6 million. The name is derived from the ancient Adr ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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St Mark's Basilica
The Patriarchal Cathedral Basilica of Saint Mark (), commonly known as St Mark's Basilica (; ), is the cathedral church of the Patriarchate of Venice; it became the episcopal seat of the Patriarch of Venice in 1807, replacing the earlier cathedral of San Pietro di Castello. It is dedicated to and holds the relics of Saint Mark the Evangelist, the patron saint of the city. The church is located on the eastern end of Saint Mark's Square, the former political and religious centre of the Republic of Venice, and is attached to the Doge's Palace. Prior to the fall of the republic in 1797, it was the chapel of the Doge and was subject to his jurisdiction, with the concurrence of the procurators of Saint Mark for administrative and financial affairs. The present structure is the third church, begun probably in 1063 to express Venice's growing civic consciousness and pride. Like the two earlier churches, its model was the sixth-century Church of the Holy Apostles in Constanti ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Fatimid Caliphate
The Fatimid Caliphate (; ), also known as the Fatimid Empire, was a caliphate extant from the tenth to the twelfth centuries CE under the rule of the Fatimids, an Isma'ili Shi'a dynasty. Spanning a large area of North Africa and West Asia, it ranged from the western Mediterranean in the west to the Red Sea in the east. The Fatimids traced their ancestry to the Islamic prophet Muhammad's daughter Fatima and her husband Ali, the first Shi'a imam. The Fatimids were acknowledged as the rightful imams by different Isma'ili communities as well as by denominations in many other Muslim lands and adjacent regions. Originating during the Abbasid Caliphate, the Fatimids initially conquered Ifriqiya (roughly present-day Tunisia and north-eastern Algeria). They extended their rule across the Mediterranean coast and ultimately made Egypt the center of the caliphate. At its height, the caliphate included—in addition to Egypt—varying areas of the Maghreb, Sicily, the Levant, and the Hej ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Rock Crystal
Quartz is a hard, crystalline mineral composed of silica (silicon dioxide). The atoms are linked in a continuous framework of SiO4 silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO2. Quartz is, therefore, classified structurally as a framework silicate mineral and compositionally as an oxide mineral. Quartz is the second most abundant mineral in Earth's continental crust, behind feldspar. Quartz exists in two forms, the normal α-quartz and the high-temperature β-quartz, both of which are chiral. The transformation from α-quartz to β-quartz takes place abruptly at . Since the transformation is accompanied by a significant change in volume, it can easily induce microfracturing of ceramics or rocks passing through this temperature threshold. There are many different varieties of quartz, several of which are classified as gemstones. Since antiquity, varieties of quartz have been the most commonly used ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Relief
Relief is a sculpture, sculptural method in which the sculpted pieces remain attached to a solid background of the same material. The term ''wikt:relief, relief'' is from the Latin verb , to raise (). To create a sculpture in relief is to give the impression that the sculpted material has been raised above the background Plane (geometry), plane. When a relief is carved into a flat surface of stone (relief sculpture) or wood (relief carving), the field is actually lowered, leaving the unsculpted areas seeming higher. The approach requires chiselling away of the background, which can be time-intensive. On the other hand, a relief saves forming the rear of a subject, and is less fragile and more securely fixed than a sculpture in the round, especially one of a standing figure where the ankles are a potential weak point, particularly in stone. In other materials such as metal, clay, plaster stucco, ceramics or papier-mâché the form can be simply added to or raised up from the bac ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Palmette
The palmette is a motif in decorative art which, in its most characteristic expression, resembles the fan-shaped leaves of a palm tree. It has a far-reaching history, originating in ancient Egypt with a subsequent development through the art of most of Eurasia, often in forms that bear relatively little resemblance to the original. In ancient Greek and Roman uses it is also known as the anthemion (from the Greek ανθέμιον, a flower). It is found in most artistic media, but especially as an architectural ornament, whether carved or painted, and painted on ceramics. It is very often a component of the design of a frieze or border. The complex evolution of the palmette was first traced by Alois Riegl in his '' Stilfragen'' of 1893. The half-palmette, bisected vertically, is also a very common motif, found in many mutated and vestigial forms, and especially important in the development of plant-based scroll ornament. Description The essence of the palmette is a symmetrical ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Soda–lime Glass
Soda–lime glass, also called soda–lime–silica glass, is the transparent glass used for windowpanes and glass containers (bottles and jars) for beverages, food, and some commodity items. It is the most prevalent type of glass made. Some glass bakeware is made of soda-lime glass, as opposed to the more common borosilicate glass. Soda–lime glass accounts for about 90% of manufactured glass. Production The manufacturing process for soda–lime glass consists in melting the raw materials, which are the silica, soda (), hydrated lime (), dolomite (), which provides the magnesium oxide), and aluminium oxide; along with small quantities of fining agents (e.g., sodium sulfate (Na2SO4), sodium chloride (NaCl), etc.) in a glass furnace at temperatures locally up to 1675 °C.B. H. W. S. de Jong, "Glass"; in "Ullmann's Encyclopedia of Industrial Chemistry"; 5th edition, vol. A12, VCH Publishers, Weinheim, Germany, 1989, , pp. 365–432. The soda and the lime serve as a f ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Fatimid Art
Fatimid art refers to artifacts and architecture from the Fatimid Caliphate (909–1171), an empire based in Egypt and North Africa. The Fatimid Caliphate was initially established in the Maghreb, with its roots in a ninth-century Shia Ismailist uprising. Many monuments survive in the Fatimid cities founded in North Africa, starting with Mahdia, on the Tunisian coast, the principal city prior to the conquest of Egypt in 969 and the building of ''al-Qahira'', the "City Victorious", now part of modern-day Cairo. The period was marked by a prosperity amongst the upper echelons, manifested in the creation of opulent and finely wrought objects in the decorative arts, including carved rock crystal, lustreware and other ceramics, wood and ivory carving, gold jewelry and other metalware, textiles, books and coinage. These items not only reflected personal wealth, but were used as gifts to curry favour abroad. The most precious and valuable objects were amassed in the caliphal palace ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |