Why It’s Time to Re-Write the History of Giza

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Introduction

The video explores the historical development of the Giza Plateau, focusing on the ridge of limestone used for the causeway leading to the Pyramid of Khafre. It examines geological and archaeological evidence suggesting that this feature may predate the pyramids and the Great Sphinx.

Description of the Causeway

The causeway to the Pyramid of Khafre was constructed on a ridge of limestone approximately 495 meters (1624 feet) long. It extends from the northwest corner of the Khafre Valley Temple, passes the Great Sphinx, and ends at the Khafre Mortuary Temple. Quarries exist on both its northern and southern sides, indicating that this strip of bedrock was intentionally left intact.

Geological Context

• The limestone ridge served as a natural roadway or ramp, possibly used before the construction of the pyramids.
• Evidence indicates that the ridge was a central feature of the plateau, dating back to pre-dynastic or early dynastic periods.

Quarrying Evidence

Southern Quarry

• This quarry is attributed to Khufu, the builder of the Great Pyramid.
• Archaeological studies, including those by Mark Lehner, confirm its association with Khufu’s construction projects.

Northern Quarry

• The northern quarry begins approximately 20 meters (65.62 feet) behind the Sphinx enclosure.
• Some evidence, such as mud seal impressions and parallel walls, suggests it was also initially utilized during Khufu’s reign.
• The quarry was divided into eastern and western sections, with Khufu responsible for the eastern half and Khafre potentially exploiting the western half.

Strategic Use of the Limestone Ridge

Jean-Pierre Houdin hypothesized that Khufu preserved the ridge to connect a harbor in the east to higher ground in the west, facilitating the transport of granite blocks for pyramid construction. This strategy likely influenced Khafre’s later reuse of the ridge for his pyramid causeway.

Possible Pre-Dynastic Origin

• Some suggest the ridge may have been an older roadway, used before the pyramids and the Sphinx were constructed.
• There is speculation that the plateau was pre-planned to serve as a royal burial site for multiple Fourth Dynasty rulers.

Solar Alignment

• The alignment of the pyramids creates a solar effect during the summer solstice. Viewed from the Sphinx Temple, the sun sets between the Great Pyramid and the Pyramid of Khafre, resembling an ancient Egyptian horizon hieroglyph.

Erosion Patterns of the Sphinx Enclosure

Observations

• The Sphinx enclosure walls show asymmetrical erosion, with the western end significantly more degraded than the eastern end.
• The degradation aligns with rainfall runoff patterns and groundwater wicking processes.

Geological Factors

• The limestone in the area has been subject to millions of years of weathering by acidic groundwater and rainwater runoff.
• Flash floods and rainwater runoff likely contributed to the erosion, as seen in other Old Kingdom structures.

Implications for Dating the Sphinx Enclosure

• If the northern quarry predates the Sphinx enclosure, this suggests the Sphinx enclosure is older than previously thought.
• The asymmetrical erosion pattern further supports the theory that the Sphinx enclosure predates the Fourth Dynasty quarries.

Conclusion

The evidence suggests that the limestone ridge, the causeway, and the Sphinx enclosure are older than traditionally believed. They may date back to pre-dynastic or early dynastic periods, predating the pyramids. This challenges the conventional timeline of Giza’s development and highlights the complex and ancient history of the plateau.

References

• Studies by Mark Lehner and Colin Reader were instrumental in providing geological and archaeological insights.
• Jean-Pierre Houdin’s architectural analysis supports the strategic use of the limestone ridge.
• Observations of solar alignments and erosion patterns offer further context for the pre-Fourth Dynasty origins of these features.