Witch-king of Angmar occupies Arthedain
Event Type: Military/Strategic
Age: 3rd Age - The Kings
An event in the Battle of Fornost; see that entry for an overview:
1974 End of the North-kingdom. The Witch-king of Angmar over-runs Arthedain and takes Fornost.
The Return of the King, LoTR Appendix B, The Tale of Years: The Third Age
[The] Witch-king of Angmar […] was now dwelling, it is said, in Fornost, which he had filled with evil folk, usurping the house and rule of the kings.
The Return of the King, LoTR Appendix A, Annals of the Kings and Rulers: The Realms in Exile: The Southern Line: Heirs of Anárion