Cultural event
Various factions emerge because of the great upheaval
The loose organization of the Sinkers evolves into the Doomguard. The Mercykillers are formed from the merger of the Sons of Mercy and the Sodkillers. The Society of Sensation coalesces into a true faction. The Athar temporarily depart the city of Sigil for a complex at the foot of the Spire. The shakeup caused by the Upheaval inflates the membership of the Indeps (the faction that claims it isn't a faction) to almost one million.