The construction of the Egyptian pyramids remains one of the most discussed problems in ancient history, not because it is genuinely mysterious but because popular imagination has been captured by the scale of the achievement and the relative lack of textual documentation.

What we know from archaeology and administrative documents is considerable. The workers were not slaves: Old Kingdom papyri (the Wadi el-Jarf papyri discovered in 2013) document the logistical organization of pyramid construction, including worker teams, ration records, and the delivery of limestone. The workers were organized into named gangs, received substantial food rations, had medical care, and included skilled craftsmen who were clearly valued.

The engineering challenges — quarrying millions of tons of limestone and granite, transporting them to the site, and raising them to great heights with precision — were solved through the application of human labor at large scale combined with relatively simple technology: sledges, wooden rollers, ramps, levers, and copper tools. Experimental archaeology and examination of evidence at Giza have produced plausible ramp and transport systems that could accomplish the task.

The precision of the Pyramid of Khufu — a base that is level to within 2.1 cm across 230 meters, sides oriented to the cardinal directions to within 0.05 degrees — remains impressive by any standard. This precision reflects careful surveying using the stars and plumb lines, combined with a workforce capable of executing complex specifications consistently.