Do we have some kind of FFXIV lore wiki?

[Anonymoose]

I did some searches and learned many things about this awesome world

This is good! But always take what you read with a grain of salt. Reddit, YouTube, and FFWiki have a...hit and miss..relationship with FFXIV and lore accuracy, lol.

Were they one before?

It's been vaguely hinted at but we're not sure of the specifics. We know they were "One" and yet we know they "shared the Sea." Can you share something if you are one thing? So it seems that the Will of Light (Hydaelyn) and the Will of Darkness (Zodiark) (if they ever were fully enmeshed as one entity), spent some time is a single body with two wills. We don't know what this means. Two crystals in one sea? One crystal with two wills?

Then, where is this Zodiark?

Physics in FFXIV are kinda weird. You dig into the planet, you might cross a boundry into the aetherial world, as if the physical world is a separate world projected from the aetherial, and the physical - at this point in spacetime - is shattered into 14 sub-frequency dimensional planes. In the sense that our planet is connected to the aetherial sea and Hydaelyn, you could say Hydaelyn is literally the planet. In the same sense, I think Zodiark is literally the moon. I think He was thrown out of the sea and became a separate entity, trapped in an aetherial rift. In the physical world, we see this as a different sphere separate from the planet, but dead. No aether, no life. Dig into the moon, you might find yourself in the Chrysalis. (Might.)

Are 7 shards (knowing we had 7 calamities) already Rejoined

Yes. The Ascians say so, Hydaelyn says so, there's no reason not to take it for granted at this point. (Yet?) The shards have been going their separate ways for 10,000+ years, so none of the same nations should exist, none of the same people should exist, nothing should be the same except maybe chunks of the geography. In that sense, while aether does have memory, would people being born today have any more memory of the other worlds than we do our own?