Although it’s certainly more plausible than hypotheses like ancient aliens or lizard people, the idea that slaves built the Egyptian pyramids is no more true.
[It] was a classic whataboutism used by slavery apologists.
[...] The evidence suggests they were built by a force of skilled laborers, [...] These were cadres of elite construction workers who were well-fed and housed during their stint.
[...] The excavation also uncovered “tremendous quantities of cattle, sheep, and goat bone, ‘enough to feed several thousand people, even if they ate meat every day,’ [...] suggesting that workers were “fed like royalty.” [....] While there were slaves in Egypt, the builders of the pyramids were maybe more like the Amish, [...] performing the same kind of obligatory communal labor as a barn raising. In that context, when we look at the Great Pyramid, “you have to say ‘This is a hell of a barn!’’’
[...] Recent archeology has also dealt a blow to extraterrestrial or time-travel explanations, which begin with the assumption that ancient Egyptians could not have possessed the know-how and skill to build such structures over 4,000 years ago. Not so.
[...] What about digging up the Great Pyramid’s 2 million blocks of yellow limestone? As we know, this was done by a skilled workforce, who quarried an “Olympic swimming-pool’s worth of stone every eight days” for 23 years to build the Great Pyramid
[...]They did so using the only metal available to them, copper.