Egyptian pyramids carbon dating
Until late in 1993, it was generally believed that no artefacts or relics of any kind were found inside the Giza pyramids that might be contemporary with the construction of the monuments and, consequently, that no organic material, such as wood, human bones or textile fibres, was available to scientists that could be used for dating the pyramids by the Carbon 14 method .We know of certain suspect artefacts found in the Giza pyramids that, had they survived, could have been used for Carbon 14 dating.As soon as a plant or animal dies, the carbon uptake stops.The radioactive carbon isotope is no longer replenished; it only decays.It is said that Manetho's main goal was to prove to the Greeks that the Egyptians were the world's oldest people, but that he faced competition; Berosus was trying to do the same thing with his homeland, Mesopotamia, while the chief librarian of the Alexandria library, Erastosthenes, also claimed great antiquity for the Greeks.It was Manetho who compiled Egyptian history into the thirty dynasties we are familiar with today.
The iron plate was eventually donated to the British Museum along with an affidavit from Hill and also from others who had been present during the find. Hill that it was contemporaneous with the pyramid, Lucas later changed his mind when he realized that the iron was not from meteoritic origin. Jones of Imperial College London, asked the British Museum for a small sample of the iron plate so that they could conduct a full scientific examination.The first problem with Manetho's dynasties was that the Egyptians left few clues as to which dynasty followed which; they weren't interested in recording which dynasties ended in a revolution and which simply died out.More serious is that the original text of Manetho is no longer available; what we have are garbled editions quoted by two late Roman writers (Eusebius and Africanus), plus an excerpt from Josephus.In principle I accept the restorer theory, though I probably have a different take on it, as well as the idea the Sphinx, related temples, and G2's base at the least, are much older than the pyramids.
But I don't see any reason to suggest any, particularly the pyramids, are 12,000yrs old.
The debate over when the Giza complex was constructed is still ongoing.