Because Tut's tomb was small and insignificant most archeologist and tomb raiders overlooked it until it was finally discovered.
The main reason why the Framers of the Constitution included the amendment process was because "A.)They wanted to provide a way to change the Constitution as the country changed," since they new that a "rigid" document would lead to disaster.
Resolved, that this Congress will apply to His Majesty for a redress of grievances under which his faithful subjects in America labor; and assure him that the colonies hold in abhorrence the idea of being considered independent communities on the British government, and most ardently desire the establishment of a political union, not only among themselves but with the mother state, upon chose principles of safety and freedom which are essential in the constitution of all free governments, and particularly that of the British legislature.
SO BASICALLY POLITICAL UNION
D) second industrial revolution