Cambridge carbon dating
But material from the time of the pyramids lends itself well to radiocarbon dating because they fall into the 2575-1640 date range.
Radiocarbon technicians prefer to test wood and wood charcoal because their high molecular weight mitigates material loss during the rigorous pretreatments required for radiocarbon testing.
It is likely that, by the pyramid age, the Egyptians had been intensively exploiting wood for fuel for a long time.
Because of the scarcity and expense of wood, the Egyptians would reuse pieces of wood as much as possible.
Interest in Egyptian chronology is widespread in both popular and scholarly circles.
The number of dates from the two projects was only large enough to allow for statistical comparisons for the pyramids of Djoser, Khufu, Khafre, and Menkaure. First, there are significant discrepancies between the 19 dates for Khufu and Khafre, but not for Djoser and Menkaure.
Second, the 1995 dates vary widely even for a single monument.
Test results from Middle Kingdom pyramid (Senwosret II).
Ancient Egypt’s population was restricted to the narrow confines of the Nile Valley with, we assume, a sparse cover of trees.
For Khufu’s Great Pyramid, they scatter over a range of about 400 years.