Various conspiracy theories. Mostly derived from actual evidence such as leaked documents. Anything I've heard and believe to be credible but I can't find a clear confirmation of will be marked with a * in the document.
A conspiracy theory is a narrative based on evidence that contradicts the accepted narrative, and involves a conspiracy to suppress the truth. The classic example is the JFK assassination, but flat earth and bigfoot both tend to have coverups in their narratives, so they'd be considered conspiracy theories as well.
Just because it's a conspiracy theory doesn't mean that it's false. Just because it's a conspiracy theory doesn't mean that it's true.