Hit me. What books to read?

I assume you are referring to examples of lost history. Many of what I've found is original research and is so broad in scope that Voat isn't the best medium for it (I noticed a long time ago that my wordier posts get far less attention), but I'll summarize that, in addition to pointing you towards others who have made strides.

• Dave McGowan: This man is in a class of his own. Aside from his excellent investigation into the Boston Marathon 'bombings', amongst others, he has two works completely of his own discoveries. The first, Weird Scenes Inside the Canyon, pertains to the military takeover of all music, the fabrication of 'the hippies', the creation of Hollywood, and the creation of our 'drug culture'. I've extended this work into their covert societal experiments in the Australian bush, the motivation for these experiments, and traced both further forward (to include the creation of our modern 'festival culture') and further backward (to include their tests on a cultural takeover of the American Blacks, beginning first with their music).
• Dave McGowan, again: his other major original work pertains to the assassination of Abraham Lincoln, another president whose history seems to have been so warped that it is impossible to know what is true anymore. He planned to extend this work but was accidented - he died of, shit you not, undiagnosed late stage lung cancer. His daughters toned it down, but when he got the diagnosis, he was absolutely sure he was hit.
• Immanuel Velikovsky: This guy hadn't written anything comprehensive before he died, but his work ignited a massive new research field (called 'comparative mythology'). Worlds in Collision is comprehensive in terms of his evidence, but his theory has been refined since his death (for example, we now know that red clay, found only on the US east coast and Australia, came from Mars, which corroborates an aboriginal legend that the red soil 'fell from the sky'). This is way too big to digest into a summary here.
• Donnely Ignatious (History of the Great Conflagration) and Father Perrin (The Great Peshtigo Fire): These are two accounts of the Peshtigo-Chicago fire, which burned a combined 270+ square miles, and demonstrated a number of strange physical phenomenon (along with the fact that it started everywhere at once, and was described by these survivors as 'the sky itself' igniting everything nearby). This ties into the previous book, as, it turns out, these fires coincided with the close passing of a comet, and some now suspect that a fragment of the comet broke off.
• Speaking of, 'the weather' is known to be incredibly strange. For example, a hailstone the size of a golfball would require vertical winds of nearly 300 mph to suspend it, and the largest hailstones on record would require the air itself be updrafting at supersonic speeds, which is impossible from fluid dynamics principles. I was writing up a massive post on this years ago when I lost interest as it didn't seem like many here would be interested. There is much more strange with weather: check out James Donahue: he doesn't write comprehensively either, but he makes enough notes of the strange that we can easily investigate further. Link on falling frogs, falling misc things, and a link on some interesting falls, including a rain of hay on a clear day.

There is so much more but I'm out of time. I've done some work tracing the origins of feminism, which surprisingly tied to the civil war, which had all kinds of even more surprising finds. I didn't even have space to mention that the Chicago-Peshtigo fire is the origin of the 'Acts of God' clause and the origin of 'fire codes' (and thus the building code), which is also extremely well hidden. The origin of the traffic infraction is also incredibly well hidden, but appears to have been invented in California sometime mid-last century. Also, legends tell of a man who brought a lawsuit that ultimately invalidated California's ENTIRE Inferior Court (now called District Court in most places), which is why California doesn't have an Inferior/District Court at all (this one was pre-internet, sometime in the mid-70s, so much easier to coverup). I suspect this was covered up to avoid knowledge of the vulnerability spreading to other states.

If you ever manage to make it through everything I've linked here, call me out in a public post and I promise I'll have more for you.

The holocaust on trial: The case of Ernst Zundel. If you can find it. I think I have it on an external drive somewhere if you can't

The guy was a real piece of work. He made his own edit of the bible, complete with euphemistic censorship, and was very intimately woven amongst other (((freemasons))) at the time (e.g. Alexander Hamilton). He directly caused the degeneracy of our language (of which always precedes the degeneracy of our thought).

From wikipedia:

Webster rejected the notion that the study of Greek and Latin must precede the study of English grammar. The appropriate standard for the American language, argued Webster, was "the same republican principles as American civil and ecclesiastical constitutions." This meant that the people-at-large must control the language; popular sovereignty in government must be accompanied by popular usage in language.

Or get this one:

"everyman of common reading knows that a living language must necessarily suffer gradual changes in its current words, in the significations of many words, and in pronunciation". -- Noah Webster