This info is taken from a book "Dramatic Prophecies of the Great Pyramid"
by Rudolfo Benevaides but I won't get into the prophecy here.
When Napoleon invaded Egypt he ordered a topographical map of the valley of the Nile. A master meridian had to be contrived to which the measures
could be related. Due to the size and visibility of the Great Pyramid it was chosen as the 0 meridian. It was perfect not only for Egypt but also
the entire world. It divided the valley of the Nile in
two and in the same way divides the Delta of the Nile. Also, it is the midpoint of the Earth, geographically speaking. Greenwich seems to be the
meridian for political expediency, but the pyramid was scientifically correct.
Questions about the Great Pyramid; for example why the Great Pyramid axis is not precisely on the 30 parallel North. The axis is almost on the
intersection of the 31st meridian East of Greenwich and the 30th parallel North.
The parallel passes through the Sea of Sargasso in the Atlantic where there are gigantic mountains, but not at a great depth. Probably inhabited
lands years ago. Also, the parallel of the Great Pyramid almost touches the Canary Island, also suspected of being the place of Atlantis.
Egypt is found at the center of the inhabited world, not only in antiquity but in the entire world
The balance pivot of the Earth is precisely Egypt which divides the world into equal parts in the Northern Hemisphere.
This book also contains all of the calculations that are recorded by the measurements of the Great Pyramid and the inside chambers.

