It is called the oldest pyramid by the orthodoxy.
Except it isn't. The inner walls of the Great Pyramid of Giza have caps and columns that look like they were cut more than 8,000 years ago from a quarry to the south and then installed into an existing pyramid.
Djoser is a crude little affair that plays well into their conceits about the "evolution" in design that led to Giza. In fact, Djoser looks like some newcomers arrived a few thousand years ago in Egypt, a dynasty completely unassociated with the original pyramid and they practiced building a few crude tombs before they tackled the restoration of Giza. This consisted of a new outer mantle and a gold capstone for the crown.
Giza may have been a very ancient structure like the Sphinx that the new caucasian rulers (recently arrived melonheads) tried to restore to its former glory just as people are trying now to restore these structures. The evidence says both the Sphinx and Giza were originally built a long, long time ago.
For example, the new pharoahs repainted and finished the walls when they had the finances to do so (all that crap about slave labor is bunkum) and certainly made many cosmetic improvements as far as their aesthetic sense was concerned. Where this refinish has collapsed or fallen away inside of Giza, you can see they had painted over rock that looked like it had been subjected to terrible heat previously, either in a big fire that broke out inside the pyramid or else some of the far fringe elements suggest a tactical low-yield nuke was detonated in the center by rivals to attempt to destroy it.
The evidence points to Giza being very old when the little Djoser practice mound was built by inferior workman using different techniques. The orthodoxy says they got better because it is the only possible explanation. I say it is because the last pharoahs had not been in Egypt for thousands of years when they arrived there and tried to summon up the former glory of the ancient city which had sat there in ruins for millennia. I am in the school that thinks that the pyramids were originally built when the entire area was a lush tropical paradise.
Check out these guys, trying to date good masonry to 600 A.D. in Mexico. Damn, that is around the time the first colonists arrived in America, I don't know how they missed these incredibly advanced cultures when all the Mexicans they met were living in crude adobe huts. The hard and fast rule is that anything found in South America has to have happened after the birth of Christ because that is when these civilizations were supposed to have flourished. The only difference between religion and the kind of "science" these lads practice is they don't wear costumes as funny as those the Vatican comes up with.