Abedneum: Accessing. In the early stages of its development cycle Azeroth suffered infection by parasitic, necrophotic symbiotes. Designation: Old Gods. Old Gods rendered all systems, including Earthen defenseless in order to facilitate assimilation. This matrix destabilization has been termed the Curse of Flesh. Effects of destabilization increased over time.The early days of Azeroth's creation are a puzzle that has yet to be completely solved. The issue of Azeroth's creation lies in the order of events as they've been presented; we have two very different orders of events depending on where you're looking for reference. In one, the Titans arrived on Azeroth to find the Old Gods, put the world in order, then left for parts unknown. In another, it's implied that the Titans arrived, put the world to order, and left. At some point after this, the Old Gods arrived and wreaked havoc, prompting the return of the Titans and the imprisonment of the Old Gods.
Brann Bronzebeard yells: Old Gods eh? So they zapped the Earthen with this Curse of Flesh. And then what?
Kaddrak: Accessing. Creators arrived to extirpate symbiotic infection. Assessment revealed that Old God infestation had grown malignant. Excising parasites would result in loss of host--
So ... which one is correct? Well, there's an interesting part in the middle of all of this that can be used to try and unravel that particular puzzle. It's called the Curse of Flesh, and its shaped far more of Azeroth as we know it today than you'd think.
Today's Know Your Lore is a Tinfoil Hat edition, meaning the following is a look into what has gone before with pure speculation on what is to come as a result. These speculations are merely theories and shouldn't be taken as fact or official lore.