The following events took place in 121 ABY.
- Death of Darth Abeonis
- End of the Legacy era
- Darth Proditor becomes the next Dark Lord of the Decreton Empire
- Sith Order of Decreto power struggle begins
- Post Republic Era ends.
- Beginning of the Reformation Era (Dark Jedi Era).
- Beginning of the Unity era
122 ABY - 121 ABY - 120 ABY