For a long time, the only source of information about the construction of the pyramids was the information of the historian Herodotus, who visited Egypt around 450 BC. e. and tried to describe the technology from the words of Egyptian priests and Greek settlers. He did not know the Egyptian language and communicated through translators. Here's what we found out.

“Cheops... made all the Egyptians work for him. Some were obliged to drag huge blocks of stones from the quarries in the Arabian mountains to the Nile (the stones were transported across the river on ships), while others were ordered to drag them further to the so-called Libyan mountains. One hundred thousand people did this work continuously, changing every three months. It took ten years for the exhausted people to build a road along which these stone blocks were dragged - the work, in my opinion, is almost as huge as the construction of the pyramid itself ... The construction of the pyramid itself lasted twenty years ... It is made of hewn and fitted stones , each stone is at least thirty cubic feet. This is how the pyramid was built. At first it goes in the form of a ladder ledges, which others call platforms, or steps. After the first stones were laid, the rest were raised using platforms made of short beams. So they lifted stones from the ground to the first rung of the stairs. There they laid a stone on another platform; from the first step they dragged them onto the second platform, with the help of which they lifted them to the second step. How many rows of steps there were, so many lifting devices. Perhaps, however, there was only one lifting device, which, after lifting the stone, was easily transferred to the next step.

But these data were recorded 2000 years after the event, and modern scientists needed more demonstrative evidence. And they got them - already in the 21st century.