4600-year-old step pyramid uncovered in Egypt

Archaeologists working near the ancient settlement of Edfu, in southern Egypt, have uncovered a step pyramid that dates back about 4,600 years, predating the Great Pyramid of Giza by at least a few decades.

The step pyramid, which once stood as high as 43 feet (13 metres), is one of seven so-called "provincial" pyramids built by either the pharaoh Huni (reign ca. 2635-2610 B.C.) or Snefru (reign ca. 2610-2590 B.C.). Over time, the step pyramid's stone blocks were pillaged, and the monument was exposed to weathering, so today, it's only about 16 feet (5 m) tall.

Scattered throughout central and southern Egypt, the provincial pyramids are located near major settlements, have no internal chambers and were not intended for burial. Six of the seven pyramids have almost identical dimensions, including the newly uncovered one at Edfu, which is about 60 x 61 feet (18.4 x 18.6 m).

The purpose of these seven pyramids is a mystery. They may have been used as symbolic monuments dedicated to the royal cult that affirmed the power of the king in the southern provinces.

Common plan

"The similarities from one pyramid to the other are really amazing, and there is definitely a common plan," said Gregory Marouard, a research associate at the University of Chicago's Oriental Institute who led the work at the Edfu pyramid. On the east side of the newly uncovered pyramid, his team found the remains of an installation where food offerings appear to have been made-a discovery that is important for understanding this kind of pyramid since it provides clues as to what they were used for.

The team also found hieroglyphic graffiti incised on the outer faces of the pyramid. The inscriptions are located beside the remains of babies and children who were buried at the foot of the pyramid. The researchers think the inscriptions and burials date to long after the pyramid was built and that the structure was not originally intended as a burial place.

Initial results of the excavation were presented at a symposium held in Toronto recently by the Society for the Study of Egyptian Antiquities.

Uncovering the pyramid

Though scholars knew of the existence of the pyramid at Edfu, the structure had never been excavated before Marouard's team started work in 2010, he said in the study. His team found that the pyramid was covered by a thick layer of sand, modern waste and remains from the pillaging of its blocks.

It didn't look like a pyramid he said, and people in a nearby village even thought the structure was the tomb of a sheikh, a local Muslim saint. As the team went to work cleaning the monument, the ancient pyramid was revealed.

Built of sandstone blocks and clay mortar, it had been constructed in the form of a three-step pyramid. A core of blocks rises up vertically, with two layers of blocks beside it, on top of each other. This made the pyramid look like it had three steps.