Orion Correlation Theory
Encyclopedia
The Orion Correlation Theory is a hypothesis
Hypothesis
A hypothesis is a proposed explanation for a phenomenon. The term derives from the Greek, ὑποτιθέναι – hypotithenai meaning "to put under" or "to suppose". For a hypothesis to be put forward as a scientific hypothesis, the scientific method requires that one can test it...

 in pyramidology
Pyramidology
Pyramidology is a term used, sometimes disparagingly, to refer to various pseudoscientific speculations regarding pyramids, most often the Giza Necropolis and the Great Pyramid of Giza in Egypt...

. Its central claim is that there is a correlation between the location of the 3 largest pyramids of the Giza pyramid complex
Giza pyramid complex
The Giza Necropolis is an archaeological site on the Giza Plateau, on the outskirts of Cairo, Egypt. This complex of ancient monuments includes the three pyramid complexes known as the Great Pyramids, the massive sculpture known as the Great Sphinx, several cemeteries, a workers' village and an...

 and the three middle stars
Orion's Belt
The term Orion's Belt or the Belt of Orion may refer to:* Orion's Belt, an asterism consisting of three bright stars in a row in the constellation Orion* Orion's Belt, a 1985 film* Orion's Belt, a browser game...

 of the constellation Orion
Orion (constellation)
Orion, often referred to as The Hunter, is a prominent constellation located on the celestial equator and visible throughout the world. It is one of the most conspicuous, and most recognizable constellations in the night sky...

, and that this correlation was intended as such by the builders of the pyramids. The stars of Orion were associated with Osiris
Osiris
Osiris is an Egyptian god, usually identified as the god of the afterlife, the underworld and the dead. He is classically depicted as a green-skinned man with a pharaoh's beard, partially mummy-wrapped at the legs, wearing a distinctive crown with two large ostrich feathers at either side, and...

, the sun-god of rebirth and afterlife, by the ancient Egyptians. Depending on the version of the theory, additional pyramids can be included to complete the picture of the Orion constellation, and the Nile
Nile
The Nile is a major north-flowing river in North Africa, generally regarded as the longest river in the world. It is long. It runs through the ten countries of Sudan, South Sudan, Burundi, Rwanda, Democratic Republic of the Congo, Tanzania, Kenya, Ethiopia, Uganda and Egypt.The Nile has two major...

 river can be included to match with the Milky Way
Milky Way
The Milky Way is the galaxy that contains the Solar System. This name derives from its appearance as a dim un-resolved "milky" glowing band arching across the night sky...

 galaxy. The theory was first published in 1989 in Discussions in Egyptology, volume 13. It was the subject of a bestseller, The Orion Mystery, in 1994 , as well as a BBC documentary, The Great Pyramid: Gateway to the Stars (February 1994). Since then it has been discussed, reviewed and presented in numerous journals, magazines, and TV documentaries.

History

The Orion Correlation Theory was first put forward by Bauval
Robert Bauval
Robert Bauval is an author, lecturer, and Ancient Egypt researcher, best known for his Orion Correlation Theory.-Early life:...

 in 1983. One night, while working in Saudi Arabia
Saudi Arabia
The Kingdom of Saudi Arabia , commonly known in British English as Saudi Arabia and in Arabic as as-Sa‘ūdiyyah , is the largest state in Western Asia by land area, constituting the bulk of the Arabian Peninsula, and the second-largest in the Arab World...

, he took his family and a friend's family up into the sand dunes of the Arabian desert
Arabian Desert
The Arabian Desert is a vast desert wilderness stretching from Yemen to the Persian Gulf and Oman to Jordan and Iraq. It occupies most of the Arabian Peninsula, with an area of...

 for a camping expedition. His friend pointed out Orion
Orion (constellation)
Orion, often referred to as The Hunter, is a prominent constellation located on the celestial equator and visible throughout the world. It is one of the most conspicuous, and most recognizable constellations in the night sky...

, and mentioned that Mintaka, the smaller more easterly of the stars making up Orion's belt
Orion's Belt
The term Orion's Belt or the Belt of Orion may refer to:* Orion's Belt, an asterism consisting of three bright stars in a row in the constellation Orion* Orion's Belt, a 1985 film* Orion's Belt, a browser game...

 was offset slightly from the others. Bauval then made a connection between the layout of the three main stars in Orion's belt
Orion's Belt
The term Orion's Belt or the Belt of Orion may refer to:* Orion's Belt, an asterism consisting of three bright stars in a row in the constellation Orion* Orion's Belt, a 1985 film* Orion's Belt, a browser game...

 and the layout of the three main pyramids in the Giza necropolis
Giza pyramid complex
The Giza Necropolis is an archaeological site on the Giza Plateau, on the outskirts of Cairo, Egypt. This complex of ancient monuments includes the three pyramid complexes known as the Great Pyramids, the massive sculpture known as the Great Sphinx, several cemeteries, a workers' village and an...

. He published this idea in 1989 in the journal Discussions in Egyptology, volume 13. The idea has been further expounded by Bauval in collaboration with Adrian Gilbert
Adrian Gilbert
Adrian Gilbert is a bestselling British author and independent publisher who lives in England. His books are centred around investigations into ancient Esoteric knowledge and religious Mysteries....

 (The Orion Mystery, 1994) and Graham Hancock
Graham Hancock
Graham Hancock is a British writer and journalist. Hancock specialises in unconventional theories involving ancient civilizations, stone monuments or megaliths, altered states of consciousness, ancient myths and astronomical/astrological data from the past...

 (Keeper of Genesis, 1996) , as well as in their separate publications. The basis of this theory concerns the proposition that the relative positions of three main Ancient Egypt
Ancient Egypt
Ancient Egypt was an ancient civilization of Northeastern Africa, concentrated along the lower reaches of the Nile River in what is now the modern country of Egypt. Egyptian civilization coalesced around 3150 BC with the political unification of Upper and Lower Egypt under the first pharaoh...

ian pyramids on the Giza plateau
Giza pyramid complex
The Giza Necropolis is an archaeological site on the Giza Plateau, on the outskirts of Cairo, Egypt. This complex of ancient monuments includes the three pyramid complexes known as the Great Pyramids, the massive sculpture known as the Great Sphinx, several cemeteries, a workers' village and an...

 are (by design) correlated with the relative positions of the three stars in the constellation
Constellation
In modern astronomy, a constellation is an internationally defined area of the celestial sphere. These areas are grouped around asterisms, patterns formed by prominent stars within apparent proximity to one another on Earth's night sky....

 of Orion
Orion (constellation)
Orion, often referred to as The Hunter, is a prominent constellation located on the celestial equator and visible throughout the world. It is one of the most conspicuous, and most recognizable constellations in the night sky...

 which make up Orion's Belt
Orion's Belt
The term Orion's Belt or the Belt of Orion may refer to:* Orion's Belt, an asterism consisting of three bright stars in a row in the constellation Orion* Orion's Belt, a 1985 film* Orion's Belt, a browser game...

— as these stars appeared 10,000 BC.

Their initial claims regarding the alignment of the Giza pyramids with Orion ("…the three pyramids were a terrestrial map of the three stars of Orion's belt"— Hancock's Fingerprints of the Gods
Fingerprints of the Gods
Fingerprints of the Gods: The Evidence of Earth's Lost Civilization is a book first published in 1995 by Graham Hancock, in which he echoes nineteenth century writer Ignatius Donnelly, author of Atlantis: The Antediluvian World , in contending that some previously enigmatic ancient but...

, 1995, p. 375) are later joined with speculation about the age of the Great Sphinx
Great Sphinx of Giza
The Great Sphinx of Giza , commonly referred to as the Sphinx, is a limestone statue of a reclining or couchant sphinx that stands on the Giza Plateau on the west bank of the Nile in Giza, Egypt....

 (Hancock and Bauval, Keeper of Genesis, published 1996, and in 1997 in the U.S. as The Message of the Sphinx). According to these works, the Great Sphinx was constructed c. 10,500 BC (Upper Paleolithic
Upper Paleolithic
The Upper Paleolithic is the third and last subdivision of the Paleolithic or Old Stone Age as it is understood in Europe, Africa and Asia. Very broadly it dates to between 40,000 and 10,000 years ago, roughly coinciding with the appearance of behavioral modernity and before the advent of...

), and its lion
Lion
The lion is one of the four big cats in the genus Panthera, and a member of the family Felidae. With some males exceeding 250 kg in weight, it is the second-largest living cat after the tiger...

-shape is maintained to be a definitive reference to the constellation
Constellation
In modern astronomy, a constellation is an internationally defined area of the celestial sphere. These areas are grouped around asterisms, patterns formed by prominent stars within apparent proximity to one another on Earth's night sky....

 of Leo
Leo (constellation)
Leo is one of the constellations of the zodiac. Its name is Latin for lion. Its symbol is . Leo lies between dim Cancer to the west and Virgo to the east.-Stars:...

. Furthermore, the orientation and dispositions of the Sphinx, the Giza pyramids and the Nile River
Nile
The Nile is a major north-flowing river in North Africa, generally regarded as the longest river in the world. It is long. It runs through the ten countries of Sudan, South Sudan, Burundi, Rwanda, Democratic Republic of the Congo, Tanzania, Kenya, Ethiopia, Uganda and Egypt.The Nile has two major...

 relative to one another on the ground is put forward as an accurate reflection or "map" of the constellations of Leo, Orion (specifically, Orion's Belt
Orion's Belt
The term Orion's Belt or the Belt of Orion may refer to:* Orion's Belt, an asterism consisting of three bright stars in a row in the constellation Orion* Orion's Belt, a 1985 film* Orion's Belt, a browser game...

) and the Milky Way
Milky Way
The Milky Way is the galaxy that contains the Solar System. This name derives from its appearance as a dim un-resolved "milky" glowing band arching across the night sky...

 respectively. As Hancock puts it in 1998's The Mars Mystery (co-authored with Bauval):

...we have demonstrated with a substantial body of evidence that the pattern of stars that is "frozen" on the ground at Giza in the form of the three pyramids and the Sphinx represents the disposition of the constellations of Orion and Leo as they looked at the moment of sunrise on the spring equinox during the astronomical "Age of Leo" (i.e., the epoch in which the Sun was "housed" by Leo on the spring equinox.) Like all precessional ages
Precession of the equinoxes
In astronomy, axial precession is a gravity-induced, slow and continuous change in the orientation of an astronomical body's rotational axis. In particular, it refers to the gradual shift in the orientation of Earth's axis of rotation, which, like a wobbling top, traces out a pair of cones joined...

 this was a 2,160-year period. It is generally calculated to have fallen between the Gregorian calendar
Gregorian calendar
The Gregorian calendar, also known as the Western calendar, or Christian calendar, is the internationally accepted civil calendar. It was introduced by Pope Gregory XIII, after whom the calendar was named, by a decree signed on 24 February 1582, a papal bull known by its opening words Inter...

 dates of 10,970 and 8810 BC
9th millennium BC
The 9th millennium BC marks the beginning of the Neolithic period.Agriculture spread throughout the Fertile Crescent and use of pottery became more widespread. Larger settlements like Jericho arose along salt and flint trade routes. Northern Eurasia was resettled as the glaciers of the last glacial...

. (op. cit., p.189)


The allusions to dates c. 12,500 years ago are significant to Hancock since this is the era he seeks to assign to the advanced progenitor civilization, now vanished, but which he contends through most of his works had existed and whose advanced technology influenced and shaped the development of the world's (known) civilizations of antiquity. Egyptology
Egyptology
Egyptology is the study of ancient Egyptian history, language, literature, religion, and art from the 5th millennium BC until the end of its native religious practices in the AD 4th century. A practitioner of the discipline is an “Egyptologist”...

 and archaeological science
Archaeology
Archaeology, or archeology , is the study of human society, primarily through the recovery and analysis of the material culture and environmental data that they have left behind, which includes artifacts, architecture, biofacts and cultural landscapes...

 maintain that available evidence indicates that the Giza pyramids were constructed during the Fourth dynasty
Fourth dynasty of Egypt
The fourth dynasty of ancient Egypt is characterized as a "golden age" of the Old Kingdom. Dynasty IV lasted from ca. 2613 to 2494 BC...

 period (3rd millennium BC
3rd millennium BC
The 3rd millennium BC spans the Early to Middle Bronze Age.It represents a period of time in which imperialism, or the desire to conquer, grew to prominence, in the city states of the Middle East, but also throughout Eurasia, with Indo-European expansion to Anatolia, Europe and Central Asia. The...

), while the exact date of the Great Sphinx is still unclear. Hancock does not dispute the dating evidence for the pyramids, but instead argues that they must have been planned with the knowledge of how the stars had appeared some eight thousand years before they were actually built —since the Orion Constellation Theory claims they are oriented that way— which it is implied provides further evidence for the influence of a technology and knowledge which would not have been available to the pyramids' builders.

Criticisms

The claims made by Hancock, Bauval, and others (such as Adrian Gilbert
Adrian Gilbert
Adrian Gilbert is a bestselling British author and independent publisher who lives in England. His books are centred around investigations into ancient Esoteric knowledge and religious Mysteries....

 and Anthony West) concerning the significance of these proposed correlations have been examined by several scientists, who have published detailed criticism and rebuttal of these ideas.

Among these critiques are several from two astronomer
Astronomer
An astronomer is a scientist who studies celestial bodies such as planets, stars and galaxies.Historically, astronomy was more concerned with the classification and description of phenomena in the sky, while astrophysics attempted to explain these phenomena and the differences between them using...

s, Ed Krupp
Ed Krupp
Edwin C. Krupp is an American astronomer and author. He has been the director of the Griffith Observatory in Los Angeles for over thirty years, since first taking over the position in 1974 from his predecessor, William J...

 of Griffith Observatory
Griffith Observatory
Griffith Observatory is in Los Angeles, California, United States. Sitting on the south-facing slope of Mount Hollywood in L.A.'s Griffith Park, it commands a view of the Los Angeles Basin, including downtown Los Angeles to the southeast, Hollywood to the south, and the Pacific Ocean to the southwest...

 in Los Angeles and Anthony Fairall, astronomy professor at the University of Cape Town
University of Cape Town
The University of Cape Town is a public research university located in Cape Town in the Western Cape province of South Africa. UCT was founded in 1829 as the South African College, and is the oldest university in South Africa and the second oldest extant university in Africa.-History:The roots of...

, South Africa. Using planetarium
Planetarium
A planetarium is a theatre built primarily for presenting educational and entertaining shows about astronomy and the night sky, or for training in celestial navigation...

 equipment, Krupp and Fairall independently investigated the angle between the alignment of Orion's Belt and north during the era cited by Hancock, Bauval et al. (which differs from the angle seen today or in the 3rd millennium BC, because of the precession of the equinoxes
Precession of the equinoxes
In astronomy, axial precession is a gravity-induced, slow and continuous change in the orientation of an astronomical body's rotational axis. In particular, it refers to the gradual shift in the orientation of Earth's axis of rotation, which, like a wobbling top, traces out a pair of cones joined...

), and found that the angle was somewhat different from the "perfect match" claimed by Bauval and Hancock in the Orion Constellation Theory– 47-50 degrees per the planetarium measurements, compared to the 38 degree angle formed by the pyramids.

Krupp also pointed out that the slightly-bent line formed by the three pyramids was deviated towards the north, whereas the slight "kink" in the line of Orion's Belt was deformed to the south, and to match them up one or the other of them had to be turned upside-down. Indeed, this is what was done in the original book by Bauval and Gilbert (The Orion Mystery), which compared images of the pyramids and Orion without revealing the pyramids' map had been inverted. Krupp and Fairall find other problems with the claims, including noting that if the Sphinx is meant to represent the constellation of Leo
Leo (constellation)
Leo is one of the constellations of the zodiac. Its name is Latin for lion. Its symbol is . Leo lies between dim Cancer to the west and Virgo to the east.-Stars:...

, then it should be on the opposite side of the Nile (the "Milky Way") from the pyramids ("Orion"), that the vernal equinox c. 10,500 BC was in Virgo
Virgo (constellation)
Virgo is one of the constellations of the zodiac. Its name is Latin for virgin, and its symbol is . Lying between Leo to the west and Libra to the east, it is the second largest constellation in the sky...

 and not Leo, and that in any case the constellations of the Zodiac
Zodiac
In astronomy, the zodiac is a circle of twelve 30° divisions of celestial longitude which are centred upon the ecliptic: the apparent path of the Sun across the celestial sphere over the course of the year...

 originate from Mesopotamia and are completely unknown in Egypt until the much later Graeco-Roman era. Ed Krupp repeated this "upside down" claim in the BBC documentary Atlantis Reborn (1999).

According to Bauval and Hancock, some astronomers (including Dr. Archie Roy
Archie Roy
- Career :Professor Archie Edminston Roy , was educated at Hillhead High School and the University of Glasgow. He is married to Frances with three sons; Dr. Archie W N Roy, Ian Roy and David Roy....

, Dr. Percy Seymour, Dr. Mary Bruck, Dr. Giulio Magli), however, have rejected Krupp's argument. The correlation, they claim, is a visual one when standing north of the Giza pyramids and looking south. Archie Roy, professor Emeritus of Astronomy at Glasgow University, and Percy Seymour, astronomer and astrophysicist at Plymouth University U.K., have both publicly rejected several of Krupp's arguments, including the accusation that Bauval and Gilbert purposefully inverted the pyramid map.

In a ruling by the Broadcasting Standards Commission (UK), the committee ruled in favour of Robert Bauval that Krupp's statement that maps were placed upside down was "unfairly" presented in the BBC documentary Atlantis Reborn, without Bauval given a right to a filmed response. Bauval and Hancock's filmed responses to Krupp's statements were included in the modified version of the documentary Atlantis Reborn Again shown on 14 December 2000.

Leo and the Sphinx

The Great Sphinx is a statue with the face of a man and the body of a lion
Lion
The lion is one of the four big cats in the genus Panthera, and a member of the family Felidae. With some males exceeding 250 kg in weight, it is the second-largest living cat after the tiger...

. Carved out of the surrounding limestone
Limestone
Limestone is a sedimentary rock composed largely of the minerals calcite and aragonite, which are different crystal forms of calcium carbonate . Many limestones are composed from skeletal fragments of marine organisms such as coral or foraminifera....

 bedrock, it is 57 metres (185 ft) long, 6 m (20 ft) wide, and has a height of 20 m (65 ft), making it the largest single-stone statue in the world. The Great Sphinx is one of the world’s largest and oldest statues, yet basic facts about it such as the real-life model for the face, when it was built, and by whom, are debated. These questions have collectively earned the title “Riddle of the Sphinx,” a nod to its Greek namesake, although this phrase should not be confused with the original Greek legend.

The Great Sphinx is commonly accepted by Egyptologists to represent the likeness of King Khafra
Khafra
Khafra — also Khafre — was an Egyptian pharaoh of the Fourth dynasty, who had his capital at Memphis. According to some authors he was the son and successor of Khufu, but it is more commonly accepted that Djedefre was Khufu's successor and Khafra was Djedefre's...

 (also known by the Hellenised version of his name, Chephren) who is often credited as the builder as well. This would place the time of construction somewhere between 2520 BC and 2494 BC. Because the limited evidence giving provenance to Khafra is ambiguous and circumstantial, the idea of who built the Sphinx, and when, continues to be the subject of debate. An argument put forward by Bauval and Hancock to support the Orion Correlation Theory is that the construction of the Great Sphinx was begun in 10,500 BC
Upper Paleolithic
The Upper Paleolithic is the third and last subdivision of the Paleolithic or Old Stone Age as it is understood in Europe, Africa and Asia. Very broadly it dates to between 40,000 and 10,000 years ago, roughly coinciding with the appearance of behavioral modernity and before the advent of...

; that the Sphinx's lion
Lion
The lion is one of the four big cats in the genus Panthera, and a member of the family Felidae. With some males exceeding 250 kg in weight, it is the second-largest living cat after the tiger...

-shape is a definitive reference to the constellation
Constellation
In modern astronomy, a constellation is an internationally defined area of the celestial sphere. These areas are grouped around asterisms, patterns formed by prominent stars within apparent proximity to one another on Earth's night sky....

 of Leo
Leo (constellation)
Leo is one of the constellations of the zodiac. Its name is Latin for lion. Its symbol is . Leo lies between dim Cancer to the west and Virgo to the east.-Stars:...

; and that the layout and orientation of the Sphinx, the Giza pyramid complex
Giza pyramid complex
The Giza Necropolis is an archaeological site on the Giza Plateau, on the outskirts of Cairo, Egypt. This complex of ancient monuments includes the three pyramid complexes known as the Great Pyramids, the massive sculpture known as the Great Sphinx, several cemeteries, a workers' village and an...

 and the Nile River
Nile
The Nile is a major north-flowing river in North Africa, generally regarded as the longest river in the world. It is long. It runs through the ten countries of Sudan, South Sudan, Burundi, Rwanda, Democratic Republic of the Congo, Tanzania, Kenya, Ethiopia, Uganda and Egypt.The Nile has two major...

 is an accurate reflection or “map” of the constellations of Leo, Orion
Orion (constellation)
Orion, often referred to as The Hunter, is a prominent constellation located on the celestial equator and visible throughout the world. It is one of the most conspicuous, and most recognizable constellations in the night sky...

 (specifically, Orion’s Belt) and the Milky Way
Milky Way
The Milky Way is the galaxy that contains the Solar System. This name derives from its appearance as a dim un-resolved "milky" glowing band arching across the night sky...

, respectively.

A date of 10,500 BC is chosen because they maintain this is the only time in the precession of the equinoxes
Precession of the equinoxes
In astronomy, axial precession is a gravity-induced, slow and continuous change in the orientation of an astronomical body's rotational axis. In particular, it refers to the gradual shift in the orientation of Earth's axis of rotation, which, like a wobbling top, traces out a pair of cones joined...

 when the astrological age
Astrological age
An astrological age is a time period which astrology postulates parallels major changes in the development of Earth's inhabitants, particularly relating to culture, society and politics. There are twelve astrological ages corresponding to the twelve zodiacal signs in western astrology. At the...

 was Leo
Leo (astrology)
Leo is the fifth astrological sign of the Zodiac, originating from the constellation of Leo. In astrology, Leo is considered to be a "masculine", positive sign. It is also considered a fire sign and is one of four fixed signs ruled by the Sun.Individuals born when the Sun is in this sign are...

 and when that constellation rose directly east of the Sphinx at the vernal equinox. They also suggest that in this epoch the angles between the three star
Star
A star is a massive, luminous sphere of plasma held together by gravity. At the end of its lifetime, a star can also contain a proportion of degenerate matter. The nearest star to Earth is the Sun, which is the source of most of the energy on Earth...

s of Orion’s Belt and the horizon was an “exact match” to the angles between the three main Giza pyramids. This time period also coincides with the American psychic
Psychic
A psychic is a person who professes an ability to perceive information hidden from the normal senses through extrasensory perception , or is said by others to have such abilities. It is also used to describe theatrical performers who use techniques such as prestidigitation, cold reading, and hot...

 Edgar Cayce
Edgar Cayce
Edgar Cayce was an American psychic who allegedly had the ability to give answers to questions on subjects such as healing or Atlantis while in a hypnotic trance...

’s “dating” of Atlantis
Atlantis
Atlantis is a legendary island first mentioned in Plato's dialogues Timaeus and Critias, written about 360 BC....

. These and other theories are used to support the overall belief in an advanced and ancient, but now vanished, global progenitor civilization
Civilization
Civilization is a sometimes controversial term that has been used in several related ways. Primarily, the term has been used to refer to the material and instrumental side of human cultures that are complex in terms of technology, science, and division of labor. Such civilizations are generally...

.

The theory of an older Sphinx has received some support from geologist
Geologist
A geologist is a scientist who studies the solid and liquid matter that constitutes the Earth as well as the processes and history that has shaped it. Geologists usually engage in studying geology. Geologists, studying more of an applied science than a theoretical one, must approach Geology using...

s. Most famously, Robert M. Schoch
Robert M. Schoch
Robert M. Schoch is an associate professor of Natural Science at the College of General Studies, a 2 year non-degree granting unit of Boston University. He received his Ph.D...

 has argued that the effects of water erosion
Erosion
Erosion is when materials are removed from the surface and changed into something else. It only works by hydraulic actions and transport of solids in the natural environment, and leads to the deposition of these materials elsewhere...

 on the Sphinx and its surrounding enclosure means that parts of the monument must originally have been carved at the latest between 7000–5000 BC. Schoch's analysis has been broadly corroborated by another geologist, David Coxill, who agrees that the Sphinx has been heavily weathered by rainwater and must therefore have been carved in pre-dynastic times. While a third geologist, Colin Reader
Colin Reader
Colin Reader is an English geologist with an interest in Ancient Egypt and is also secretary of The Manchester Ancient Egypt Society.His studies of the Sphinx have contributed to a debate on the outer fringes of archaeology regarding the date of the monument...

, has suggested a date several hundred years prior to the commonly accepted date for construction. These views, however, have been almost universally rejected by mainstream Egyptologists who, together with a number of geologists, e.g. James Harrell, Lal Gauri, John J. Sinai, and Jayanta K. Bandyopadhyaym, stand by the conventional dating for the monument. Their analyses attribute the apparently accelerated wear on the Sphinx variously to modern industrial pollution, qualitative differences between the layers of limestone in the monument itself, scouring by wind-borne sand, and/or temperature changes causing the stone to crack.

External links

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