Herodotus tells us that 100,000 men labored for twenty years to build the Great Pyramid of Giza which is one of the seven wonders of the ancient world. A common saying of the ancient Egyptians was “man fears time but time fears the pyramids.” The pharoah was literally believed to be a god incarnate and to most Egyptians this life was merely a time of preparation for the next life - eternity with the gods.
Some years ago, the Smithsonian came up with a low tech solution to the construction of the pyramids that would have reduced the time and manpower needed to a fraction of what it would have had to have been otherwise.
Simply put, using sectional wooden “wheels”, held together with pins, to turn square stones into cylinders that would be easy to roll up dirt ramps.
At the quarry, where there are considerable ruins of workers homes, you muscle the cut stone onto the first two of eight wooden pieces that are flat on the side facing the stone, and rounded on the outside. Then you add the other six wooden sections and pin them together.
The stone is like an axle with two wheels, so could then be rolled down to the dock and loaded on a small ship to take it down the river. Once there, it could be rolled all the way to the pyramid site.
On site, once the lowest level of stones had been laid, then you build a dirt ramp to the same height. Then push or pull the “wheeled” stones up the ramp to build the next level. There doesn’t even have to be a great incline to the dirt ramp, as it can circle the pyramid. Dirt ramp technology was well known at that time.
Once you have emplaced the capstone, you just remove the dirt, and you have a finished pyramid. Importantly, using this technique would also explain the ease with which the inner chambers of the pyramid were built.