Some trace Cabal’s lineage back to ancient Sumeria. I assume Cabal is ultimately answerable to non-human, non-physical intelligences, demons if you will, who would predate our oldest records. In recent human history, I think they were embedded in Great Britain before America, judging from the tradition of homosexual rape and paedophilia in Eton (the principle schooling for UK politicians) and Churchill’s obeisance before the worldly powers that be.
In America, I suspect it could be dated to 1963.

Cabal have (I judge) repeatedly tried to assassinate Trump, without success. But each attempt has been passed off as a vehicular accident or lone maniacs trying to get into the White House with a machete etc. There has been nothing as blatant as JFK’s assassination on November 22, 1963 in Dealey Plaza.
If one compares the murders of JFK and his brother to the attempts on Trump, I note that Cabal are acting much more discreetly with the God Emperor, and much less successfully. I believe the reasons are: they fear exposure in the internet age, and this time the NSA and shadow factions in CIA and FBI (among others) are actually on Trump’s side – my intuition is that even among those deepest in the darkness, some are supporting Trump for their own reasons.
The outrage Trump has occasioned among Cabal mouthpieces, to a far greater degree than Dubya, suggests he is a genuine outsider and, for all his Israel-pandering, a real threat to Cabal. My theory is that, after JFK, every US President was either a carefully-selected puppet (LBJ, Clinton, Bush, Obama) or tolerated within limits (Reagan, Nixon, Ford, Carter). Nixon, for all his many faults, strikes me as non-Cabal, a merely humanly corrupt individual.
My guess is, that after JFK it was no longer necessary to kill US Presidents – with the exception of Reagan

who presumably came to some accommodation with Cabal after a friend of his Vice President’s shot him in March 1981. The fact that Cabal so openly took out JFK and his brother, took a shot at Reagan, but left Clinton, Bush, Obama etc. untouched suggests they were more or less in control by the mid-60s, Reagan being an aberration whose reign they reined in as much as possible.
As further corroboration, can you imagine a modern POTUS giving a public address like this:
This conjunction of an immense military establishment and a large arms industry is new in the American experience. The total influence-economic, political, even spiritual-is felt in every city, every state house, every office of the Federal government. We recognize the imperative need for this development. Yet we must not fail to comprehend its grave implications. Our toil, resources and livelihood are all involved; so is the very structure of our society.
In the councils of government, we must guard against the acquisition of unwarranted influence, whether sought or unsought, by the military-industrial complex. The potential for the disastrous rise of misplaced power exists and will persist.
We must never let the weight of this combination endanger our liberties or democratic processes. We should take nothing for granted. Only an alert and knowledgeable citizenry can compel the proper meshing of huge industrial and military machinery of defense with our peaceful methods and goals, so that security and liberty may prosper together.
So, my supposition: regardless of 1913, Cabal had little hold on America in the 50s and early 60s or it wouldn’t have even been possible for Eisenhower or JFK to be elected in the first place, barring a Black Swan event such as attended and feted the God Emperor and still wafts him in his place atop the Cherry Throne to this date; and in such a case, we would have ample evidence of aberration – most of all, in the controlled media.
Cabal being a relatively small number of mega-influencers, if you like, they operate best in a totalitarian society; but they seem to have a preference for totalitarian societies with the illusion of freedom. I get the feeling they enjoy manipulating the well-meaning weak-minded Left to enforce their edicts, at least so far. The mass-media age is perhaps their natural habitat, although they pre-date such methods of control; and, as we see with the Great Meme War, the internet is not as easily controllable as they might wish.
If Cabal only really began its stranglehold upon American politics in the mid-60s, it would take time to transform the institutions of power to Cabal’s will. Accordingly, what we are witnessing with Trump and the Q organisation may be a revolt of the old ways, men formed by pre-Cabal institutions, and we are perhaps in the last time window for such a movement – another generation and the ethics and customs of pre-Cabal America would have faded from living memory.