Secret history is as old as time itself.
Secret history is, in essence, real facts that are concealed, disguised, hidden or not explained in a general context where, often, the overt public version of events that is different from the version of events that the hidden facts would show.
For example the killing of JFK by Lee Harvey Oswald has thousands of serious unanswered questions. Those questions form the text of a secret history.
Why is secret history important? It's important enough for people to go to the effort of hiding the facts. No one does that for no reason.
Governments have no right to privacy. WE ARE THE GOVERNMENT. We decide for ourselves what is private and what is not. Secrecy for military reasons in time of war is one thing, generic secrecy for its own sake, ie to hide illicit goings on, is anathema.
Here's an interesting thought, from Michael A Hoffman II in Secret Societies and Psychological warfare, on what he calls the "revelation of method" by the "cryptocracy":
This is what simplistic researchers miss: the function of macabre arrogance thumbing its nose at us while we do nothing except spread the tale of their immunity and invincibility further. That is the game plan operant here.
To the belief system of the modern man it sounds too crazy. Why would the perpetrators want their secrets revealed after the fact? … This question can only be definitely answered if one has an understanding of the zeitgeist which overseers in the cryptocracy have partly manufactured and partly tailored their own operations to coincide with. As I've pointed out, secrets like this were rarely revealed in the past because traditional people had not yet completed the alchemical processing (of mind control). To make such perverse, modern revelations to an unprocessed, healthy and vigorous population possessed of will, memory adherence to their deepest inner intuition and intense interest in their salvation, would not have been a good thing for the cryptocracy. It would have proven fatal to them.
But to reveal these after-the-fact secrets in our modern time, to a people who have no memory, no willpower and no interest in their own fate except in so far as it may serve as momentary titillation and entertainment actually strengthens the enslavement of such a people.
See what Hoffman is saying here? The Power Control Group (Richard E Sprague's evocative term from The Taking of America, 1-2-3) occasionally chooses to tip its hand to us as a mechanism of control. In nature it would be a threat display, except the threat implied here is the confirmation that things are really as bad as we think, and we can't do a damn thing about it.
-Jeff Wells
If you've never heard of Toynbee Tiles - well you're just too ignorant to be worth talking to. Educate yourself. What could it hurt? Other than The Empire.