Unkown Era: Irmin, the one-eyed king, grew weak and the Alberich clan took control

Divine Envoy Era: around the time of Sal Vindagnyr's fall, Khaenri'ah becomes independent. The creation of automatons begins plausibly to combat Celestia

The Archon War (2000YA): Oogura and Ooshima travel to Enkanomiya as as a Khaenri'ahn diplomatic team, but they attempt to the book, Before Sun and Moon, however Antei sacrifices himself to destroy their ruin guard and prevent their theft

Pre-Cataclysm: Dainsleif is born. Pierro fails to stop the rulers of Khaenri'ah leading to the destruction at the hands of the Heavenly Principles.

The Alfisol created by Albedo's Master, Rhinedottir, also known as the "great sinner", gold, advance upon Teyvat's overworld with the monsters of the Abyss. Khaenri'ah is destroyed by the heavenly principles, the Eclipse Dynasty Falls, and The Seven become involved. Dainsleif, the "twilight sword" fails to protect his people and his cursed with immortality as he watched his people turn to monsters, Lumine, Aether's Sibling, who traveled with Dainsleif and learned of the world's truth awakens her brother Aether, shows him Khaenri'ah and then attempts to leave this world. 

Cholthar Alberich founds the Abyss Order to take revenge on Celestia and The Seven. Lumine joins the Abyss and declares Dainsleif her enemy, causing them to go separate ways. Chlothar goes insane from immortality and disappears, dying in Avidya Forest after breaking the curse, and Lumine takes control of the Abyss order. 10 years ago Kaeya is left at Dawn Winery in Monstadt.