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.
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.We find the bones of the people who lived and were buried in these tombs. But primarily we date the pyramids by their position in the development of Egyptian architecture and material culture over the broad sweep of 3,000 years.So we're not dealing with any one foothold of factual knowledge at Giza itself.For example, it is reported by Abu Szalt, a medieval Arab chronicler from Spain, that when the Caliph Ma'amoun entered the Great Pyramid for the first time in the 9th century and made his way to sarcophagus in the King's Chamber, 'the lid was forced opened, but nothing was discovered excepting some bones completely decayed by time.'.In 1818, when Belzoni entered the Second Pyramid (Khafre), he found some bones inside the sarcophagus which apparently turned out to be from a bull .Also, during the Howard-Vyse expedition in 1836-7, relics were found within the Third Pyramid (Menkaure) consisting of human bones and parts of the lid of a wooden coffin.