It is, however, still not a fully appreciated method due to larger margins or error, calibration uncertainties and the problem of inbuilt age (time between growth and final usage) in plant material, including wood.[37] Furthermore, astronomical alignments have been suggested to coincide with the time of construction.[30][33]
Egyptian chronology continues to be refined and data from multiple disciplines have started to be factored in, such as luminescence dating, radiocarbon dating, and dendrochronology. For instance, Ramsey et al. included over 200 radiocarbon samples in their model.[36]

Historiographical record
Classical antiquity
Herodotus
The Greek historian Herodotus was one of the first major authors to discuss the Great Pyramid.
The ancient Greek historian Herodotus, writing in the 5th century BC, is one of the first major authors to mention the pyramid. In the second book of his work The Histories, he discusses the history of Egypt and the Great Pyramid. This report was created more than 2000 years after the structure was built, meaning that Herodotus obtained his knowledge mainly from a variety of indirect sources, including officials and priests of low rank, local Egyptians, Greek immigrants, and Herodotus's own interpreters. 