# Pentagram

Regular pentagram

A regular pentagram
Type Regular polygon
Edges and vertices 5
Schläfli symbol {5/2}
Coxeter diagram
Symmetry group Dihedral (D5)
Internal angle (degrees) 36°
Dual polygon self
Properties star, cyclic, equilateral, isogonal, isotoxal

A pentagram (sometimes known as a pentalpha or pentangle or a star pentagon) is the shape of a five-pointed star drawn with five straight strokes.

Pentagrams were used as an important religious symbol by the Babylonians and by the Pythagoreans in ancient Greece. Pentagrams are used today as a symbol of faith by many Neopagans, akin to the use of the cross by Christians and the Star of David by Jews, and may be found in jewelry incorporating the symbol. Several faiths also associate the pentagram with magic. Christians in the past commonly used the pentagram to represent the five wounds of Jesus,[1][2] and it has associations with Freemasonry.[3]

## Etymology

The word pentagram comes from the Greek word πεντάγραμμον (pentagrammon),[4] a noun form of πεντάγραμμος (pentagrammos) or πεντέγραμμος (pentegrammos), a word meaning roughly "five-lined" or "five lines", from πέντε (pente), "five"[5] + γραμμή (grammē), "line".[6]

The word "pentacle" is sometimes used synonymously with "pentagram", and this usage is borne out by the Oxford English Dictionary, although that work specifies that a circumscription makes the shape more particularly a pentacle.[7] Wiccans and Neopagans often make use of this more specific definition for a pentagram enclosed in a circle.[8]

## Early history

### Sumer

The first known uses of the pentagram are found in Mesopotamian writings dating to about 3000 BC. The Sumerian pentagrams served as pictograms for the word "UB" meaning "corner, angle, nook; a small room, cavity, hole; pitfall", suggesting something very similar to the pentemychos (see below on the Pythagorean use for what pentemychos means). In René Labat's index system of Sumerian hieroglyphs/pictograms it is shown with two points up.[9] In the Babylonian context, the edges of the pentagram were probably orientations: forward, backward, left, right, and "above".[10] These directions also had an astrological meaning, representing the five planets Jupiter, Mercury, Mars, Saturn, and Venus as the "Queen of Heaven" (Ishtar) above.[10]

### Pythagoreans

Hugieia Pentagram

The Pythagoreans called the pentagram ὑγιεία Hugieia ("health"; also the Greek goddess of health, Hygieia[11]), and saw in the pentagram a mathematical perfection (see Geometry section below).

The ancient Pythagorean pentagram, with two legs up, represented the Pentemychos (πεντέμυχος "of five sanctuaries"),[12] a cosmogony written by Pythagoras' teacher and friend Pherecydes of Syros.[13][14] It was the "island" or "cave"[13] where the first pre-cosmic-offspring had to be put in order for the cosmos to appear: "the divine products of Chronos' seed [σπέρμα spérma], when disposed in five recesses, were called Πεντέμυχος (Pentemuxos)".[13]

### Wu Xing

Representation of the Chinese five phases, or elements (Wǔ Xíng)

Wu Xing (Chinese: 五行; pinyin: Wǔ Xíng), the five phases, or five elements, is an ancient Chinese mnemonic and symbolic figure widely known in East Asia and used traditionally in applications such as medicine, acupuncture, feng shui, and Taoism. They are similar to the ancient Greek elements, with more emphasis on their cyclic transformation than on their material aspects. The five phases are: Fire (火 huǒ), Earth (土 ), Metal (金 jīn), Water (水 shuǐ), and Wood (木 ).

The vectors of the overcoming or controlling cycle visually form a pentagram which is commonly incorporated into depictions. Generative and destructive cycles are shown as clockwise and counter-clockwise circular motion.[15]

controlling cycle
wood breaks earth, earth absorbs water, water douses fire, fire melts metal, metal splits wood.
generative cycle
wood feeds fire, fire makes earth, earth bears metal, metal collects water, water nourishes wood.
destructive cycle
wood absorbs water, water rusts metal, metal breaks earth, earth smothers fire, fire burns wood.

## European occultism

Heinrich Cornelius Agrippa and others perpetuated the popularity of the pentagram as a magic symbol, attributing the five neoplatonic elements to the five points, in typical Renaissance fashion. By the mid-19th century a further distinction had developed amongst occultists regarding the pentagram's orientation. With a single point upwards it depicted spirit presiding over the four elements of matter, and was essentially "good". However, the influential writer Eliphas Levi called it evil whenever the symbol appeared the other way up.

• "A reversed pentagram, with two points projecting upwards, is a symbol of evil and attracts sinister forces because it overturns the proper order of things and demonstrates the triumph of matter over spirit. It is the goat of lust attacking the heavens with its horns, a sign execrated by initiates."[16]
• "The flaming star, which, when turned upside down, is the hierolgyphic [sic] sign of the goat of Black Magic, whose head may be drawn in the star, the two horns at the top, the ears to the right and left, the beard at the bottom. It is the sign of antagonism and fatality. It is the goat of lust attacking the heavens with its horns."[17]
• "Let us keep the figure of the Five-pointed Star always upright, with the topmost triangle pointing to heaven, for it is the seat of wisdom, and if the figure is reversed, perversion and evil will be the result."[18]

## Religious symbolism

### Bahá'í Faith

The five-pointed star is a symbol of the Bahá'í Faith.[19][20] In the Bahá'í Faith, the star is known as the Haykal (Arabic: "temple"‎), and it was initiated and established by the Báb. The Báb and Bahá'u'lláh wrote various works in the form of a pentagram.[21]

### Christianity

The pentagram was used in ancient times as a Christian symbol for the five senses.[22] Medieval Christians believed that the "pentalpha" symbolizes the five wounds of Christ. The pentagram was believed to protect against demons.[23]

The pentagram figured in a heavily symbolic Arthurian romance:[23] it appears on the shield of Sir Gawain in the 14th century poem Sir Gawain and the Green Knight. As the poet explains, the five points of the star each have five meanings: they represent the five senses, the five fingers, the five wounds of Christ,[24] the five joys that Mary had of Jesus (the Annunciation, the Nativity, the Resurrection, the Ascension, and the Assumption), and the five virtues of knighthood which Gawain hopes to embody: noble generosity, fellowship, purity, courtesy, and compassion.

#### The Latter Day Saint Movement

The Church of Jesus Christ of Latter-day Saints began using both upright and inverted five-pointed stars in Temple architecture, dating from the Nauvoo Illinois Temple, which was dedicated on 30 April 1846.[25] Other temples decorated with five-pointed stars in both orientations include the Salt Lake Temple, and the Logan Utah Temple. These symbols come from the symbolism found in Revelation chapter 12, which says, "And there appeared a great wonder in heaven; a woman clothed with the sun, and the moon under her feet, and upon her head a crown of twelve stars."[26]

### Neopaganism

A typical Neopagan pentagram (circumscribed).

Many Neopagans, especially Wiccans, use the pentagram as a symbol of faith similar to the Christian cross or the Jewish Star of David. Its religious symbolism is commonly explained by reference to the neo-Pythagorean understanding that the five vertices of the pentagram represent the four elements with the addition of Spirit as the uppermost point. As a representation of the elements, the pentagram is involved in the Wiccan practice of summoning the elemental spirits of the four directions at the beginning of a ritual.

The outer circle of the circumscribed pentagram is sometimes interpreted as binding the elements together or bringing them into harmony with each other. The Neopagan pentagram is generally displayed with one point up, partly because of the "inverted" goat's head pentagram's association with Satanism; however, within traditional forms of Wicca a pentagram (no circle) with two points up is associated with the Second Degree Initiation and in this way differs from the encircled pentacle inverted of Satanism.[27]

Because of a perceived association with Satanism and also because of negative societal attitudes towards Neopagan religions and the "occult", many United States schools have sought to prevent students from displaying the pentagram on clothing or jewelry.[28][29][30] In public schools, such actions by administrators have been determined to be in violation of students' First Amendment right to free exercise of religion.[31]

The circle around a pentagram is a symbol of "unity, wholeness, infinity, the goddess, and protection. To earth-centered religions throughout history as well as to many contemporary pagans, it represents the feminine spirit or force, the cosmos or a spiritualism Mother Earth, and a sacred space."[citation needed] The five-pointed star is representative of the four primal elements (earth, air, fire and water), and traditionally a fifth, called spirit. The circle binds them together to create life. When pointing up, the pentagram can represent spirituality's dominance over the material (pentagram) bound inside the laws of the cosmos (circle). The upside-down facing pentagram, meanwhile, represents the physical world ruling over the spiritual, and has therefore been associated with dark magic. Other sources point to its origin in Chinese five-element philosophy (see feng shui), as the natural balance between fire, water, earth, wood, and metal. This theory states that the direction it is pointing has nothing to do with good or evil, but rather the upside-down facing circle is for banishing. The circle is again for the concept the power within is bound by, this time for the circle of life.[32]

#### Use on United States soldiers' tombstones

After a ten year legal battle, the encircled pentagram (referred to as a pentacle by the plaintiffs) was added to the list of 38 approved religious symbols to be placed on the tombstones of fallen service members at Arlington National Cemetery on 24 April 2007. The decision was made following ten applications from families of fallen soldiers who practiced Wicca. The government paid the families \$225,000 to settle their pending lawsuits.[33][34]

### Satanism

A goat's head inscribed in a downward-pointing pentagram, from La Clef de la Magie Noire by the Rosicrucian Stanislas de Guaita (1897).

Satanists use a pentagram with two points up, often inscribed in a double circle, with the head of a goat inside the pentagram. This is referred to as the Sigil of Baphomet. They use it much the same way as the Pythagoreans, as Tartaros literally translates from Greek as a "Pit" or "Void" in Christian terminology (the word is used as such in the Bible, referring to the place where the fallen angels are fettered). The Pythagorean Greek letters are most often replaced by the Hebrew letters לויתן forming the name Leviathan. Less esoteric LaVeyan Satanists use it as a sign of rebellion or religious identification, the three downward points symbolising rejection of Trinity.

### Thelema

Aleister Crowley also made use of the pentagram and in his Thelemic system of magick: an adverse or inverted pentagram represents the descent of spirit into matter, according to the interpretation of Lon Milo DuQuette.[35] Crowley contradicted his old comrades in the Hermetic Order of the Golden Dawn, who, following Levi, considered this orientation of the symbol evil and associated it with the triumph of matter over spirit.

## Political symbolism

### Flags

While a solid five-pointed star is found on many flags, the pentagram is relatively rare. It appears on two national flags, those of Ethiopia and Morocco and in some coats of arms. According to Ivan Sache, on the Moroccan flags, the pentagram represents the link between God and the nation.[36] It is also possible that both flags use the pentagram as a symbol of King Solomon (see Seal of Solomon), the archetypal wise king of Jewish, Christian and Muslim lore, although the six-pointed Star of David is a more common and more widely accepted symbol. In either case, the pentagram is a traditional symbol of both the Moroccan and Ethiopian peoples, and, within Morocco, is also a symbol of the Alaouite dynasty.

## Other organizations

### Order of the Eastern Star

The Order of the Eastern Star, an organization associated with Freemasonry, has employed a point-down pentagram as its symbol, with the five isosceles triangles of the points colored red, blue, yellow, white and green.

### United States Congressional Medal of Honor

The U.S. Congressional Medal of Honor, the highest military medal, awarded for "personal acts of valor above and beyond the call of duty", is made in 3 versions, for the Army, Navy and Air Force, and each is a point-down pentagram with a circular device in the center.

## In literature

In the medieval romance of Sir Gawain and the Green Knight, the pentagram on Gawain's shield is given a Christian interpretation (see above).

In Goethe's Faust, an incomplete pentagram prevents Mephistopheles from leaving a room.

Mephistopheles:
I must confess, my stepping o'er
Thy threshold a slight hindrance doth impede;
The wizard-foot doth me retain.
Faust:
The pentagram thy peace doth mar?
To me, thou son of hell, explain,
How camest thou in, if this thine exit bar?
Could such a spirit aught ensnare?
Mephistopheles:
Observe it well, it is not drawn with care,
One of the angles, that which points without,
Is, as thou seest, not quite closed.

According to Eliphas Levi, the sign of the pentagram is exalted by Goethe in the monologue of Faust:

"... Ah, how do all my senses leap at this sight! I feel the young and sacred pleasure of life quivering in my nerves and veins. Was it a God who traced this sign which stills the vertigo of my soul, fills my poor heart with joy, and, in a mysterious rapture, unveils the forces of Nature around me? Am I myself a God? All is so clear to me: I behold in these simple line the revelation of active Nature to my soul. I realise for the first time the truth of the wise man's words: The world of spirits is not closed! Thy sense is obtuse, thy heart is dead! Arise! Bathe, O adept of science, thy breast, still enveloped by an unearthly veil, in the splendours of the dawning day!" (Faust, Part i.sc.i).[37]

In H.P. Lovecraft's Cthulhu Mythos stories, the version of The Elder Sign devised by August Derleth is a warped pentagram with a flaming eye or pillar of flame in the center. It was first described in Derleth's novel, The Lurker at the Threshold. (This was, however, different from the symbol that Lovecraft himself had envisaged.)

In T.S. Eliot's The Dry Salvages, reference to pentagrams is made in part V, verse 8:

By sortilege, or tea leaves, riddle the inevitable
With playing cards, fiddle with pentagrams
Or barbituric acids, or dissect
The recurrent image into pre-conscious terrors[...]

In Dan Brown's novel The Da Vinci Code, the pentagram represents Venus, based on the successive inferior conjunctions of Venus against the Zodiac.

The title of Jo Nesbø's novel The Devil's Star, refers to a pentagram.

In Japanese culture, the pentagram (五芒星 gobōsei) is a symbol of magical power, associated with the onmyoji Abe no Seimei; it is a diagram of the "overcoming cycle" of the five Chinese elements. As a predominantly non-Christian country, with a different set of associations attached to the symbol, there is no social stigma associated with it.

## Geometry

A regular pentagram colored to distinguish its line segments of different lengths. The four lengths are in golden ratio to one another.
Fractal pentagram drawn with a vector iteration program

The pentagram is the simplest regular star polygon. The pentagram contains ten points (the five points of the star, and the five vertices of the inner pentagon) and fifteen line segments. It is represented by the Schläfli symbol {5/2}. Like a regular pentagon, and a regular pentagon with a pentagram constructed inside it, the regular pentagram has as its symmetry group the dihedral group of order 10.

### Construction

The pentagram can be constructed by connecting alternate vertices of a pentagon; see details of the construction. It can also be constructed as a stellation of a pentagon, by extending the edges of a pentagon until the lines intersect.

### Golden ratio

The golden ratio, φ = (1 + √5) / 2 ≈ 1.618, satisfying

$\varphi=1+2\sin(\pi/10)=1+2\sin 18^\circ\,$
$\varphi=1/(2\sin(\pi/10))=1/(2\sin 18^\circ)\,$
$\varphi=2\cos(\pi/5)=2\cos 36^\circ\,$

plays an important role in regular pentagons and pentagrams. Each intersection of edges sections the edges in the golden ratio: the ratio of the length of the edge to the longer segment is φ, as is the length of the longer segment to the shorter. Also, the ratio of the length of the shorter segment to the segment bounded by the two intersecting edges (a side of the pentagon in the pentagram's center) is φ. As the four-color illustration shows:

$\frac{\mathrm{red}}{\mathrm{green}} = \frac{\mathrm{green}}{\mathrm{blue}} = \frac{\mathrm{blue}}{\mathrm{magenta}} = \varphi.$

The pentagram includes ten isosceles triangles: five acute and five obtuse isosceles triangles. In all of them, the ratio of the longer side to the shorter side is φ. The acute triangles are golden triangles. The obtuse isosceles triangle highlighted via the colored lines in the illustration is a golden gnomon.

### Trigonometric values

$\sin \frac{\pi}{10} = \sin 18^\circ = \frac{\sqrt 5 - 1}{4}=\frac{\varphi-1}{2}=\frac{1}{2\varphi}$
$\cos \frac{\pi}{10} = \cos 18^\circ = \frac{\sqrt{2(5 + \sqrt 5)}}{4}$

$\tan \frac{\pi}{10} = \tan 18^\circ = \frac{\sqrt{5(5 - 2 \sqrt 5)}}{5}$

$\cot \frac{\pi}{10} = \cot 18^\circ = \sqrt{5 + 2 \sqrt 5}$

$\sin \frac{\pi}{5} = \sin 36^\circ = \frac{\sqrt{2(5 - \sqrt 5)} }{4}$

$\cos \frac{\pi}{5} = \cos 36^\circ = \frac{\sqrt 5+1}{4} = \frac{\varphi}{2}$

$\tan \frac{\pi}{5} = \tan 36^\circ = \sqrt{5 - 2\sqrt 5}$

$\cot \frac{\pi}{5} = \cot 36^\circ = \frac{ \sqrt{5(5 + 2\sqrt 5)}}{5}$

As a result, in an isosceles triangle with one or two angles of 36°, the longer of the two side lengths is φ times that of the shorter of the two, both in the case of the acute as in the case of the obtuse triangle.

### Three-dimensional figures

Several polyhedra incorporate pentagrams:

### Higher dimensions

Orthogonal projections of higher dimensional polytopes can also create pentagrammic figures:

4D 5D

The regular 5-cell (4-simplex) has 5 vertices and 10 edges.

The rectified 5-cell has 10 vertices and 30 edges.

The rectified 5-simplex has 15 vertices, seen in this orthogonal projection as 3 nested pentagrams.

The birectified 5-simplex has 20 vertices, seen in this orthogonal projection as 4 overlapping pentagrams.

All ten 4-dimensional Schläfli-Hess polychoron have either pentagrammic faces or vertex figure elements.

## In astronomy and nature

 Successive inferior conjunctions of Venus repeat very near a 13:8 orbital resonance (The Earth orbits 8 times for every 13 orbits of Venus), creating a pentagrammic precession sequence.

## Notes

1. ^ "Pentagram" article in The Continuum Encyclopedia of Symbols Becker, Udo, ed., Garmer, Lance W. translator, New York: Continuum Books, 1994, p. 230.
2. ^ Signs and Symbols in Christian Art Ferguson, George, Oxford University Press: 1966, p. 59.
3. ^ Order of the Eastern Star
4. ^ πεντάγραμμον, Henry George Liddell, Robert Scott, A Greek-English Lexicon, on Perseus
5. ^ πέντε, Henry George Liddell, Robert Scott, A Greek-English Lexicon, on Perseus
6. ^ γραμμή, Henry George Liddell, Robert Scott, A Greek-English Lexicon, on Perseus
7. ^ "Pentacle", Oxford English Dictionary.
8. ^ Associated Press (23 April 2007). "Wiccan symbol OK for soldiers' graves". CNN. Archived from the original on 26 April 2007. Retrieved 23 April 2007.
9. ^ Labat, René. Manuel d'épigraphie akkadienne: Signes, Syllabaire, Idéogrammes. The pentagram is symbol number 306 in this system.
10. ^ a b Merlin Raven Song: The Pentagram
11. ^ ὑγίεια, Henry George Liddell, Robert Scott, A Greek-English Lexicon, on Perseus
12. ^ πεντέμυχος, Henry George Liddell, Robert Scott, A Greek-English Lexicon, on Perseus
13. ^ a b c Kirk, Geoffrey Stephen; Raven, John Earle; Schofield, Malcolm (1983) [1957]. The Presocratic Philosophers: A Critical History with a Selection of Texts (2nd edition, illustrated, revised, reprint ed.). Cambridge University Press. pp. 51–52, 55. ISBN 978-0-521-27455-5. "the only other place in Homer where Ortygie [sic] is mentioned is Odyssey V, 123, where Orion, having been carried off by Eos [the dawn], is slain... by Artemis... since solstices would normally be observed at sunrise in summer, and so in the north-east-by-east direction, that is what the phrase might suggest... the dwelling-place of Eos... Aia..."
14. ^ This is a lost book, but its contents are preserved in Damascius, De principiis, quoted in Kirk and Raven, (1983) [1956], p. 55.
15. ^ Northern Shaolin Academy — Wu Xing Chart Chinese five elements table of correspondences (Microsoft Excel 2003 Format).
16. ^ Lévi, Éliphas (1999) [1896 (translated), 1854 (first published)]. Transcendental Magic, its Doctrine and Ritual [Dogme et rituel de la haute magie]. Trans. by A. E. Waite. York Beach: Weiser. OCLC 263626874.
17. ^ Lévi, Éliphas (2002) [1939 (translated), 1859 (first published)]. The Key of the Mysteries [la Clef des grands mystères suivant Hénoch, Abraham, Hermès Trismégiste et Salomon]. Trans. by Aleister Crowley. Boston: Weiser. p. 69. OCLC 49053462.
18. ^ Hartmann, Franz (1895) [1886]. Magic, White and Black (5th ed.). New York: The Path. OCLC 476635673.
19. ^ Bahá'í Reference Library – Directives from the Guardian, Pages 51–52
20. ^ Nine-Pointed Star, The:History and Symbolism by Universal House of Justice 24 January 1999
21. ^ Haykal - Baha'i Five Pointed Star Symbol
22. ^ Christian Symbols Ancient and Modern, Child, Heather and Dorothy Colles. New York: Charles Scribner's Sons, 1971, ISBN 0-7135-1960-6.
23. ^ a b Pentagram, pentacle
24. ^ Christian Symbols and How To Use Them, Knapp, Justina; Milwaukee: The Bruce Publishing Company, 1955. Plate LXV, Plate LV (Imprimatur, Jos. F. Busch, Bishop of St. Cloud)
25. ^ See the Nauvoo Temple website discussing its architecture, and particularly the page on Nauvoo Temple exterior symbolism. Retrieved 16 December 2006.
26. ^ Brown, Matthew B (2002). "Inverted Stars on LDS Temples". FAIRLDS.org. Archived from the original on 29 February 2008.
27. ^ Stewart, Farrar. The Witches' Way. Chapter II – Second Degree Initiation
28. ^ "Religious Clothing in School", Robinson, B.A., Ontario Consultants on Religious Tolerance, 20 August 1999, updated 29 April 2005. Retrieved 10 February 2006.
29. ^ "ACLU Defends Honor Student Witch Pentacle" (Press release). American Civil Liberties Union of Michigan. 10 February 1999. Retrieved 10 February 2006.
30. ^ "Witches and wardrobes: Boy says he was suspended from school for wearing magical symbol" Rouvalis, Cristina; Pittsburgh Post-Gazette, 27 September 2000. Retrieved 10 February 2006.
31. ^ "Federal judge upholds Indiana students' right to wear Wiccan symbols". Associated Press. 1 May 2000. Retrieved 21 September 2007.
32. ^ Relijournal.com
33. ^ Associated Press (23 April 2007). "Wiccan symbol OK for soldiers' graves". CNN.com. Archived from the original on 26 April 2007.
34. ^ "Burial and Memorials: Available Emblems of Belief for Placement on Government Headstones and Markers". United States Department of Veterans Affairs. 23 April 2007. Retrieved 24 April 2007.
35. ^ The Magick of Aleister Crowley p 93 and endnote 31 to Chapter Five (p 247).
36. ^ Moroccan flag on Flagspot.net Retrieved 10 February 2006.
37. ^ Eliphas Levi (1995). Transcendental Magic. Samuel Weiser Inc. p. 69. ISBN 0-87728-079-7.

## References

• Grünbaum, B. and G.C. Shephard; Tilings and Patterns, New York: W. H. Freeman & Co., (1987), ISBN 0-7167-1193-1.
• Grünbaum, B.; Polyhedra with Hollow Faces, Proc of NATO-ASI Conference on Polytopes ... etc. (Toronto 1993), ed T. Bisztriczky et al., Kluwer Academic (1994) pp. 43–70.