The Dunedain were the Rangers of the North. They wandered about Middle Earth protecting the innocent, unknown and unsung. Except for one-The Dunedain, Strider, the heir of Isildur:
All that is gold does not glitter,
Not all those who wander are lost;
The old that is strong does not wither,
Deep roots are not reached by the frost.
From the ashes a fire shall be woken,
A light from the shadows shall spring;
Renewed shall be blade that was broken,
The crownless again shall be king.
From the Fellowship of the Ring By J.R.R Tolkien