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A diadem is type of crown, specifically an ornamental headband worn by Eastern monarchs and others as a badge of royalty. The word derives from the Greek διάδημα ''diádēma'', "band" or "fillet",〔(διάδημα ), Henry George Liddell, Robert Scott, ''A Greek-English Lexicon'', on Perseus Digital Library〕 from διαδέω ''diadéō'', "I bind round", or "I fasten".〔(διαδέω ), Henry George Liddell, Robert Scott, ''A Greek-English Lexicon'', on Perseus Digital Library〕 The term originally referred to the embroidered white silk ribbon, ending in a knot and two fringed strips often draped over the shoulders, that surrounded the head of the king to denote his authority. Such ribbons were also used to crown victorious athletes in important sports games in antiquity. It was later applied to a metal crown, generally in a circular or "fillet" shape. For example, the crown worn by the kings of Anglo-Saxon England was a diadem, as was that of a baron later (in some countries surmounted by three globes). The ancient Celts were believed to have used a thin, semioval gold plate called a ''mind'' (Old Irish) as a diadem.〔William Dwight Whitney, ''The Century dictionary; an encyclopedic lexicon of the English language''. New York: The Century co. (1889), page 3,772. Google Book Search.〕 Some of the earliest examples of these types of crowns can be found in ancient Egypt, from the simple fabric type to the more elaborate metallic type, and in the Aegean world.〔Revello, Manuela, “The first aegean jewellery (4500-1800 B.C.): a new attempt at gold and silver diadems classification”, in Archaeometallurgy in Europe, International Conference Proceedings, Milan 24-25–26 September 2003, II, 657- 664〕 A diadem is also a jewelled ornament in the shape of a half crown, worn by women and placed over the forehead (in this sense, also called tiara). In some societies, it may be a wreath worn around the head. The ancient Persians wore a high and erect royal tiara encircled with a diadem. Hera, queen of the Greek gods, wore a golden crown called the diadem. By extension, "diadem" can be used generally for an emblem of regal power or dignity. The head regalia worn by Roman Emperors, from the time of Diocletian onwards, is described as a diadem in the original sources. It was this object that the Foederatus general Odoacer returned to Emperor Zeno (the Emperor of the Eastern Roman Empire) after his expulsion of the usurper Romulus Augustus from Rome in 476 CE. ==Gallery== File:Crown_of_Sit-Hathor_Yunet_(Senusret_II's_daughter).jpg| The diadem or crown of Princess Sit-Hathor Yunet from her tomb. 12th Dynasty Egypt 19th century BC. File:17th_Dynasty_Crown_(Nubkheperre_Intef).jpg| 17th Dynasty diadem crown ancient Egypt (Rijksmuseum van Oudheden) File:Wig_with_diadem.jpg|19th Dynasty wig with diadem (British Museum) File: MycenaeDiadems.jpg|Elliptical diadem from Mycenae, Greece (16th century BC) File:Diodotus I of Bactria wearing the diadem.jpg|Diodotus of Bactria wearing the ''diadema'', a white ribbon which was the Hellenistic symbol of kingship File:Greek - Greek Diadem - Walters 571541.jpg|The centerpiece of this Hellenistic diadem is a Herakles knot, known for its apotropaic powers and its status as a symbol of fertility. Walters Art Museum, ca. 3rd - 2nd century BCE. File:Goldschmuck - Diadem.jpg|Gold diadem. Greek, probably made in Alexandria, Egypt, and belonging to a noblewoman of the Ptolemaic dynasty (220–100 BC): the clasp is shaped as a Herakles knot File:Greco-Roman - Woman's Head with Diadem - Walters 23241 - Right.jpg|Greco-Roman bust of a woman wearing a diadem (100 BC-100 AD) File:Tiberius II.jpg|Imperial diadem as worn by Christian Roman emperors from the 4th century onward File:Austrian - Gothic-Style Bracelet - Walters 571999.jpg|Bracelet made from a diadem with the addition of two foliate elements (c. 1870, Walters Art Museum) File:ArdashirIGoldCoinHistoryofIran.jpg|Ardashir I of Sassanian Persia wearing very elaborate diadems ==See also== *Civic crown *Tainia *Fillet *Tiara 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「diadem」の詳細全文を読む スポンサード リンク
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