Ancient Egypt saw the abrupt introduction of a type of building made of stone, rising to the sky like a stairway to the heavens. The Step Pyramid and its supermassive enclosure is believed to have been built within Djoser’s 19 years reign, from around 2,630-2611BC.
Regrettably, the construction of all these revolutionary structures appear entirely absent from written records of ancient Egypt. There is not one ancient text, drawing, or hieroglyphs that mentions the construction of the first pyramid, just as there aren’t any written records that explain how the Great Pyramid of Giza was built.
This absence from history is one of the greatest mysteries relating to ancient Egyptian pyramids. According to Egyptologist Ahmed Fakhry, the process of quarrying, transporting and building the massive monuments was an ordinary matter for the ancient Egyptians, the reason why they did not find them worthy of record.
Academics usually mention that the structure of the Great Pyramid was planned and designed by royal architect Hemiunu. It is usually believed that the Pyramid was built in around 20 years. The Great Pyramid of Giza is believed to contain around 2.3 million blocks of stone, with a total volume of around 6.5 million tons. In terms of accuracy, the Great Pyramid is a mind-boggling structure.
The builders of the pyramid constructed one of the largest, most precisely aligned, and sophisticated pyramids on the surface of the planet, and not one person saw the need to document the tremendous architectural achievement. Isn’t that strange! [source]