When was the medium pyramid built?
The Meidum Pyramid was the first construction built by the king Senfru when he became the ruler of Egypt in the 4th dynasty. He chose this location beside his capital at the time that was called Geddy Senfru.
The construction was actually the first attempt in history to erect a true pyramid. However, the results were not really satisfying.
The ancient Egyptian architects chose this area as it consists of a strong rock plateau that can bear the huge weight and at the same time it would be near the capital.
The construction work began in the same way as the step pyramid of Djoser. However, the architects applied some changes. This included having the burial chamber inside it instead of having it under the ground level.
The ancient Egyptian workers spent many years working in the construction to become like the step pyramid of Saqqara that consists of seven layers. However, after the construction of the fifth layer, the architects wanted to construct eight layers instead of seven and then afterward they would fill the spaces between the layers to have a true pyramid-like these in Giza.
It was in the 28th and the 29th year of the reign of Senfru during the 4th dynasty when the Egyptian architects tried to develop the step pyramid they already constructed into a proper pyramid. The workers have already covered the spaces between the steps with stones but they wanted to add another outer layer because the pyramid became bigger.
The sides of the steps also were covered with white soft limestone that was brought from a desert near the neighborhood of Maadi today. The pyramid was supposed to be 92 meters high with the length of each of its sides being 144 meters high.
This was when the disaster took place when the outer cast of the pyramid collapsed and the site was abandoned immediately afterward leaving the mortuary temple, the burial chamber, and everything unfinished.