Early Megalithomaniacs according to Peter Tompkins

Chronology following Peter Tompkins, Secrets of the Great Pyramid, 1971. 

1638	John Greaves explores and measures Cheops' pyramid
1638	Tito Livio Burattini continues the work
1660	Sir Isaac Newton determines two cubits from Greaves' data
1765	Nathaniel Davison discovers a small chamber
1798	Napolean arrives at the pyramid, Jomard measures it (p. 44)
			accurate orientation discovered (p. 46)
			birth of geometro-archeology
Ralph H. Abraham, 24 April 1996.