Throughout history, many archaeologists and scientists have studied the only one of the seven ancient wonders that remain standing, and despite this, there are still many aspects unknown to us about the Egyptian pyramids. Because of this, are the legends and theories on more than one occasion crazy -some speak of a biblical origin attributed to Joseph or Noah, others about a possible extraterrestrial origin…- that have arisen in around these magnificent monuments.
Despite everything, experts and archaeologists still wonder about such basic aspects as the workforce used in construction, the most widespread theories whose origin dates back to the Greeks is that the famous pyramids were built by slaves and yet, more recent research seems to conclude that in reality, the Gizah Pyramids must have been built by skilled labor, well-paid workers whose work was well valued; proof of this are the workers' cemeteries found at the end of the 20th century by archaeologists Z. Hawass and M. Lehner.
When we talk about the Great Pyramid of Cheops, for example, some factors such as its altitude -it exceeds by more than 40% the altitude of the largest pyramid built up to then and with its more than 146 meters high altitude was the tallest construction until the Cologne Cathedral was built- and the short time spent on its construction -only twenty years- are also determining factors.
The construction of the pyramids involves the transfer of large blocks of stone, which weighed more than two tons, from the nearest quarries and which they then had to raise to great height. For the transfer, the fact that the Egyptians used sleds seems to be accepted, as it is represented in some frescoes of the time. In recent research, experts have concluded that in order to move the sleds through the sand without getting stuck, the Egyptians had to wet the sand with the exact amount of water so that it remained compact for the time necessary to pull the heavy sled..
Regarding the elevation of the stones there are different theories that can be grouped into two basic forms: or through the use of ramps (some historians say that these must have to be placed in the form of a zigzag, others in a spiral…) and this would explain the findings of large ramps found near the pyramids or, through the use of machines, these being understood as simple devices that facilitated construction.