Dang! They've flipping jacked up the entire timeline.

1. Halsin says Ketheric built a stronghold between Moonrise Towers and the Underdark leading to the Temple of Selune, but he never got to launch an attack from there because he was defeated at Moonrise Towers.
2. Documents in Selunite Outpost stated that Jarrus and Morna found the Temple of Selune, "a new temple with settlers to guide." Meaning, Moonhaven and the Temple of Selune were founded at the same time. Since Moonhaven was full of Selunite worshippers, it makes sense that they were built at the same time especially since this document says so.
3. Ketheric betrayed the people of Moonhaven and killed them, his troops butchering them for sport. Halsin and Roa fought back against him and pushed him back to Moonrise Towers where he was killed. They found his wight in the Cursed Land and put him to rest.
4. Drow attacked Jarrus and Morna and killed them all. The only way to save the temple was to seal the entrance so no one could get through.
5. Dhourn, Xargrim, and Filro were drow living in the Underdark near the Selunite Outpost. They were there searching for Grymforge to claim it for Menzoberranzan. Xargrim got into a fight with Dhourn and summoned the spectator that Mynthe, initiate serving Morna and Jarrus, spotted. Mynthe was also the one to spot statues of drow near the spectator. So we know that Dhourn was turned to stone prior to the drow attack on the Selunite Outpost and the temple being sealed off. However, Dhourn and his two companion drow were competing to find the "Great Forge" and had documents about the forge detailing its foundation as if by that point it had already been defeated and Ketheric was long dead. In other words, according to this, the Temple of Selune was just founded and Moonhaven as well AFTER Ketheric was defeated and Grymforge was shut down.
6. There are signs in Grymforge that Infernal beings were also partially responsible for the defeat of the Sharrans.


Again, none of this is making sense. Ugh! So frustrating. Confusing as ALL get out.