Chieftains of the Dúnedain established by Aranarth
Event Type: Political
Age: 3rd Age - The Kings
"1976 Aranarth takes the title of Chieftain of the Dúnedain. The heirlooms of Arnor are given into the keeping of Elrond."
Lord of the Rings: Return of the King Appx. B "The Third Age"
"After Arvedui the North-kingdom ended, for the Dúnedain were now few and all the peoples of Eriador diminished. Yet the line of the kings was continued by the Chieftains of the Dúnedain, of whom Aranarth son of Arvedui was the first. Arahael his son was fostered in Rivendell, and so were all the sons of the chieftains after him; and there also were kept the heirlooms of their house: the ring of Barahir, the shards of Narsil, the star of Elendil, and the sceptre of Annúminas.
"When the kingdom ended the Dúnedain passed into the shadows and became a secret and wandering people, and their deeds and labours were seldom sung or recorded. Little now is remembered of them since Elrond departed."
Lord of the Rings: Return of the King Appx. A Part I Section iii "Eriador, Arnor, and the Heirs of Isildur"