Battles of the late Third Age

[Kuruharan]

The Dunlendings are not the simple, unevolved barbarians portrayed commonly. If you read closely, Tolkien hints that they are descended from Black Numenoreans, the Dunedain sailed from Numenor early in its history to establish colonies in Middle-Earth. This is just a way that Tolkien shows that even the most noble of races can decline and fall.

Um, no.

They were the remnants of the old race of Men that had once lived in the valleys of Ered Nimrais. They were related to the Dead of Dunharrow and the Breelanders. Note what it says of them in Appendix F under “Of Men.”