King Amenemhat III built the Black pyramid during the Middle Kingdom of Egypt (2040-1640 BC). It is one of the five remaining pyramids of the original eleven pyramids at Dahshur in Egypt. Originally named Amenemhet is Mighty, the pyramid earned the name the Black pyramid for its dark, decaying appearance as a rubble mound. The Black pyramid, other than its dreary appearance, is also special as it was the first pyramid built to house both the deceased pharaoh and his queens. Jacques Jean Marie de Morgan, on a French mission, began the excavation on the pyramids at Dahshur in 1892. The German Archaeological Institute of Cairo completed excavation in 1983.
Below ground level in the subterranean structure lay a network of complicated passages. The king’s section remains mostly intact with a sarcophagus and canopic jar; however, the king was not buried here. The section for the queens was broken into and looted. There are four other burial chambers in the subterranean structure, who they belong to, however, is unknown. Two are thought to belong to King Amenemhet IV and Queen Sobekneferu.
The Black Pyramid, with all its grand passageways, had multiple structural deficits. The pyramid was built on one of the lowest regions of Egypt, only 10 meters above sea level. There are far too many corridors and chambers underground, and there are not enough stress relievers to hold up the ceilings. The pyramid is not very sturdy, as it was built with mud brick instead of the traditional stone. The low elevation, multitude of corridors, and unstable building material, allowed for groundwater from the Nile to seep into the walls, causing the entire pyramid to sink into the ground and crack. This dilapidated appearance, however unappealing, gave the pyramid it name and its fame.