Quote Originally Posted by Iscah View Post
Definitely stated in the lead-up promotion to Shadowbringers, and probably within the story as well.

Also I am of the understanding that the first calamity was the Sundering, or at least the aftermath of it.
Nah, the first six Calamities followed the elemental wheel starting with wind. 's why Eorzean scholars were so certain the Sixth Umbral Calamity (massive flood after the War of the Magi, wiping out Amdapor, Nym, and Mhach) was the absolute last - there were no more elements, so no more Calamities and thus the Sixth Astral Era was supposed to be the "final" Astral Era that never ends.

Obviously we know better these days, but that's what was believed back then.