When was the Great Pyramid built?
Zahi Hawass, Egypt's Antiquities Director is the leading proponent of the traditional date. Hawass obviously wants his Egyptian forefathers to get credit for the glory of the pyramids, and not some alien visitors from a previous time. The archaeological explorations and digs by Hawass at Giza have uncovered the barracks of the builders and other aspects of their culture such as the bread, fish and beer they feasted upon.
There is thus scientific and political muscle to back the traditional date of the Pyramid's construction.
A small but growing clique, however, argues for a much older date for the erection of the Pyramid and the Sphinx. The major motivation for this group seems to be the justifying of a time frame that could include the visitation to earth of intelligent aliens. Because the Pyramid's building lines and measures display knowledge that was thought to have been discovered only in modern times, this group wants to attribute the Pyramid's prescience not to Egyptians in historic times, but to aliens.
Some have suggested there is a key to the date of the Great Pyramid's building in the Mighty Structure itself. There is a line scored in the stone on the floor of the descending passage that begs to be explained. It is a distinct marking, one that was tooled, we can assume, for some purpose. Adam Rutherford and others have suggested that this scored line is meant to indicate the building date of the Great Pyramid. They say an inch equals a year in the passage systems of the Pyramid. So if the entrance is the date of the creation of Adam, then the scored line, counting the inches from the entrance to the line, would be 2141 BC. Rutherford says that Scotland's head astronomer, C. Piazzi Smyth, calculated the date when the the Dragon Star (alpha Draconis) shone down the descending passage and the Pleides were aligned with scored lines: 2141 BC.
