When was The Burn formed?

[Kranel_San]

Third Astral Era, it was an Allagan thing, which is why we find their mining facility under it. Plausibly--although I believe not confirmably--it was drained by the launch of Azys Lla.

Solus lied about the cause to stoke fears of primals.

I find it pretty weird to have a large, empty desert where nobody lives in it for over thousands of years. Only for an emperor from far away to come over and say: "Yo! A primal did it!"

Like, this desert here existed long before your empire.