Just so you know, absolutely none of that is true.
https://en.wikipedia.org/wiki/Pyramidion_of_Amenemhat_III
I don’t know if the person who posted that is sincere or not, but plenty of people sincerely believe this sort of thing when it is posted on Facebook.
Or perhaps instead of race they’re timeists who think that before invention of modern technology it would have been hard to do such things.
I mean, it would have been much harder than with modern technology, but it’s not impossible.