Unicode encodes a crescent (increscent) at U+263D (☽) and a decrescent at U+263E (☾). The Miscellaneous Symbols and Pictographs block provides variants with faces: FIRST QUARTER MOON WITH FACE at U+1F31B (🌛) and LAST QUARTER MOON WITH FACE at U+1F31C (🌜).
The crescent symbol is primarily used to represent the Moon, not necessarily in a particular lunar phase. When used to represent a waxing or waning lunar phase, "crescent" refers to the waxing first quarter, while the symbol representing the waning final quarter is called "decrescent".
The crescent symbol was long used as a symbol of the Moon in astrology, and by extension of Silver (as the corresponding metal) in alchemy. The astrological use of the symbol is attested in early Greek papyri containing horoscopes. In the 2nd-century Bianchini's planisphere, the personification of the Moon is shown with a crescent attached to her headdress.
Its ancient association with Ishtar/Astarte and Diana is preserved in the Moon (as symbolised by a crescent) representing the female principle (as juxtaposed with the Sun representing the male principle), and (Artemis-Diana being a virgin goddess) especially virginity and female chastity. In Roman Catholic tradition, the crescent entered Marian iconography, by the association of Mary with the Woman of the Apocalypse (described with "the moon under her feet, and on her head a crown of twelve stars" in Revelation) The most well known representation of Mary as the Woman of the Apocalypse is the Virgin of Guadalupe.
|Examples of lunes in planar geometry. Examples in the top row can be considered crescent shapes.|
The crescent shape consists of a circular disk with a segment of another circle removed from its edge, so that what remains is a shape enclosed by two circular arcs of different diameters which intersect at two points (usually in such a manner that the enclosed shape does not include the center of the original circle). As such, it belongs to the class of figures known as lune in planar geometry. The tapering towards the points of intersection of the two arcs are known as the "horns" of the crescent. The classical crescent shape has its horns pointing upward (and is often worn as horns when worn as a crown or diadem, e.g. in depictions of the lunar goddess, or in the headdress of Persian kings, etc.
The word crescent is derived etymologically from the present participle of the Latin verb crescere "to grow", technically denoting the waxing moon (luna crescens). As seen from the northern hemisphere, the waxing Moon tends to appear with its horns pointing towards the left, and conversely the waning Moon with its horns pointing towards the right; the English word crescent may however refer to the shape regardless of its orientation, except for the technical language of blazoning used in heraldry, where the word "increscent" refers to a crescent shape with its horns to the left, and "decrescent" refers to one with its horns to the right, while the word "crescent" on its own denotes a crescent shape with horns pointing upward.
The shape of the lit side of a spherical body (most notably the Moon) that appears to be less than half illuminated by the Sun as seen by the viewer appears in a different shape from what is generally termed a crescent in planar geometry: Assuming the terminator lies on a great circle, The crescent Moon will actually apperar as the figure bounded by a half-ellipse and a half-circle, with the major axis of the ellipse coinciding with a diameter of the semicircle.
The crescent shape is used to represent the Moon, and the Moon deity Nanna/Sin from an early time, visible in Akkadian cylinder seals as early as 2300 BC. The Egyptian logograph representing the Moon also had a crescent shape (Gardiner N11). The crescent was well used in the iconography of the Ancient Near East and was transplanted by the Phoenicians in the 8th century BC as far as Carthage (now in Tunisia). The crescent and star also appears on pre-Islamic coins of South Arabia.
The combination of star and crescent also arises in the Ancient Near East, representing the Moon and Ishtar (the planet Venus), often combined into a triad with the solar disk. It was inherited both in Sassanian and Hellenistic iconography.
In ancient Greece and ancient Greek Mythology the crescent moon was associated with the Goddess Artemis (Latin version: Diana). The symbol was used by the Byzantines extensively. Indeed Constantinople was originally founded as Byzantion in 662 BC, named after the leader of the Megareis who settled there. The patron deity of the city was Artemis and the symbol of the city was the crescent moon. The Roman emperor Constantine I refounded the city as Constantinople. The symbol of the city remained the crescent moon throughout the Byzantine era, which ended when the city fell to the Ottoman Turks in 1453. After that the Ottoman empire started using the symbol as a sign of imperial authority.
The crescent remained in use as an emblem in Sassanid Persia, used as a Zoroastrian regal or astrological symbol. In the Crusades it came to be associated with the Orient (the Byzantine Empire, the Levant and Outremer in general) and was widely used (often alongside a star) in Crusader seals and coins. It was used as a heraldic charge by the later 13th century. Anna Notaras, daughter of the last Megas Doux of the Byzantine Empire Loukas Notaras, after the fall of Constantinople and her emigration to Italy, made a seal with her coat of arms which included Two Lions holding above the crescent a cross or a sword.
From its use in Sassanid Persia, the crescent also found its way into Islamic iconography after the Muslim conquest of Persia. Umar is said to have two hung two crescent-shaped ornaments captured from the Sassanid capital Ctesiphon in the Kaaba. The crescent appears to have been adopted as an emblem on military flags by the Islamic armies from at least the 13th century, although the scholarly consensus holds that the widespread use of the crescent in Islam develops later, during the 14th to 15th century. The use of such flags is reflected in the 14th-century Libro del Conoscimiento.
Early modern and modern
The goddess Diana was associated with the Moon in classical mythology. In reference to this, feminine jewelry representing crescents, especially diadems, became popular in the early modern period. The Tarot card of the "Popess" also wears a crescent on her head.
The Ottoman Empire introduced the star and crescent as a naval flag in 1793. Muhammad Ali, who became Pasha of Egypt in 1805, introduced the first national flag of Egypt, red with three white crescents, each accompanied by a white star. This flag, in turn, influenced the design of the first flag of independent Egypt, which was green with a white crescent and three white stars to symbolize the peaceful co-existence of Muslims, Christians and Jews. During the past two centuries the crescent and star has featured on the flags of other Muslim countries.
The association of the crescent with the Ottoman Empire appears to have resulted in a gradual association of the crescent shape with Islam in the 20th century. A Red Crescent appears to have been used as a replacement of the Red Cross as early as in the Russo-Turkish War of 1877/8, and it was officially adopted in 1929. While some Islamic organisations since the 1970s have embraced the crescent as their logo or emblem (e.g. Crescent International magazine, established 1980), Muslim publications tend to emphasize that the interpretation of the crescent, historically used on the banners of Muslim armies, as a "religious symbol" of Islam was an error made by the "Christians of Europe". The identification of the crescent as an "Islamic symbol" is mentioned by James Hastings as a "common error" to which "even approved writers on Oriental subjects" are prone as early as 1928.
"Portrait of a Lady as Diana" by Pompeo Batoni (1760s)]]
The crescent has been used as a heraldic charge since the 13th century. In heraldic terminology, the term "crescent" when used alone refers to a crescent with the horns pointing upward. A crescent with the horns pointing left (dexter) is called "a crescent increscent" (or simply "an increscent"), and when the horns are pointing right (sinister), it is called "a crescent decrescent" (or "a decrescent"). A crescent with horns pointing down is called "a crescent reversed". Two crescents with horns pointing away from each other are called "addorsed". Siebmachers Wappenbuch (1605) has 48 coats of arms with one or more crescents, for example:
- Azure, a crescent moon argent pierced by an arrow fesswise Or all between in chief three mullets of six points and in base two mullets of six points argent (von Hagen, p. 176);
- Azure, an increscent and a decrescent addorsed Or (von Stoternheim, p. 146);
- Per pale Or and sable, a crescent moon and in chief three mullets of six points counterchanged (von Bodenstein, p. 182).
Three examples of coats of arms with crescents from the Dering Roll (c. 1270): No. 118: Willem FitzLel (Sable crusily and three crescents argent); no. 120: John Peche (Gules, a crescent or, on a chief argent two mullets gules); no. 128: Rauf de Stopeham (Argent, two (of three) crescents and a canton gules).
Leliwa coat of arms (15th century, Azure a crescent or, surmounted by a mullet of six points of the second)
|Wikimedia Commons has media related to Gallery of flags with crescents.|
The crescent remains in use as astrological symbol and astronomical symbol representing the Moon. It is also used on numerous emblems and flags, among these the flag of Singapore, the Flag of the Maldives or the South Carolina state flag.
New Orleans is nicknamed The Crescent City, and a crescent, or crescent and star, is used to represent the city officially — notably in its police department. The choice of the star and crescent symbol is a relic of the krewes, many of which adopted "Oriental" costume and rituals, like other societies of the 19th century.
The crescent printed on military ration boxes is the Department of Defense symbol for subsistence items. The symbol is used on packaged foodstuffs but not on fresh produce or on items intended for resale.
Other things called "crescent"
The term crescent may also refer to objects with a shape reminiscent of the crescent shape, such as houses forming an arc, a type of solitaire game, Crescent Nebula, glomerular crescent (crescent shaped scar of the glomeruli of the kidney)., the Fertile Crescent (the fertile area of land between Mesopotamia and Egypt roughly forming a crescent shape), and the croissant (the French form of the word) for the crescent-shaped pastry.
|Wikimedia Commons has media related to Crescent (shape).|
|Wikimedia Commons has media related to Crescent moon in art.|
|Look up crescent in Wiktionary, the free dictionary.|
- dictionary.reference.com: crescent
- oxforddictionaries.com: crescent
- Alchemy and Symbols, By M. E. Glidewell, Epsilon.
- Neugebauer, Otto; Van Hoesen, H. B. (1987). Greek Horoscopes. pp. 1, 159, 163.
- "Bianchini's planisphere". Florence, Italy: Istituto e Museo di Storia della Scienza (Institute and Museum of the History of Science). Retrieved 2010-03-17. Maunder, A. S. D. (1934). "The origin of the symbols of the planets". The Observatory. 57: 238–247. Bibcode:1934Obs....57..238M.
- The new Moon at sunset and the old Moon at sunrise, when observed with horns pointing upward, is also known as "wet moon" in English, in an expression loaned from Hawaiian culture.
- Arthur Charles Fox-Davies, A Complete Guide to Heraldry (1909), p. 289. Online texts at https://archive.org/details/completeguidetoh00foxduoft or http://www7b.biglobe.ne.jp/~bprince/hr/foxdavies/index.htm .
- Tombs and Moon Temple of Hureidah, Gertrude Caton Thompson, p.76
- "the three celestial emblems, the sun disk of Shamash (Utu to the Sumerians), the crescent of Sin (Nanna), and the star of Ishtar (Inanna to the Sumerians)" Irving L. Finkel, Markham J. Geller, Sumerian Gods and Their Representations, Styx, 1997, p71.
- Tipaldos, G. E., Great Greek Encyclopedia, Vol. XII, page 292, Athens, 1930
- Oleg Grabar, "Umayyad Dome," Ars orientalis (1959), p. 50, cited after Berger (2012:164).
- Pamela Berger, The Crescent on the Temple: The Dome of the Rock as Image of the Ancient Jewish Sanctuary (2012), p. 164f
- "Like the Crusaders, the Christians of Europe were misled into a belief that the crescent was the religious symbol of Islam" Islamic Review 30 (1942), p. 70. "many Muslim scholars reject using the crescent moon as a symbol of Islam. The faith of Islam historically had no symbol, and many refuse to accept it." Fiaz Fazli, Crescent magazine, Srinagar, September 2009, p. 42.
- "There is no more common error than the supposition that the crescent (or rather crescent and star) is an Islamic symbol, and even approved writers on Oriental subjects are apt to fall into it." James Hastings, Encyclopædia of Religion and Ethics, Volumes 11-12 (1928), p. 145.
- Arthur Charles Fox-Davies, A complete guide to heraldry (1909), p. 289.
- Sara L. Uckelman, An Ordinary of Siebmacher's Wappenbuch (ellipsis.cx) (2014)
- "History of the NOPD Badge". The origin is the crescent shape of the old city, hugging the East Bank of the Mississippi River.
- MIL STD 129, FM 55-17
- . It is a sign of rapidly progressive glomerulonephritis (also called crescentic glomerulonephritis). "iROCKET Learning Module: Glomerular Pathology, Case I".
- "Renal Pathology".