The Egyptians did not build the pyramids. No one living in the area can tell you; who built them, why they were built, when they were built, how they were built or why the pyramids at the complex were arranged in the particular order that they are arranged in.
I imagine long ago, the first person to use his small copper chisel and wooden mallet to dislodge the glue (a glue as strong as a spiders web) securing the casing stones and slide the first stone down the side of the pyramid, was greeted with cheers from his friends waiting at the bottom of the pyramid. They then may have used logs, camels, and perhaps the Nile to transport the stone to Cairo to build their city.
Artist’s depiction of the Great Pyramid of Egypt with casing stones intact. (Source: Wiki.en.Grepolis.com)
If money changed hands, a booming business probably emerged, and it might have taken them 20 years or so to remove all the casing stones and strip the pyramid of anything of value that they could carry off. They probably camped in one of the old ruins nearby and brought their families there to live.
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