In the fictional world of
Middle-earthcreated by J. R. R. Tolkien, Rhûn is a large region of eastern Middle-earth. Rhûn (which also the Elvish word for "east") is the name used for all lands lying east Rhovanion, around and beyond the inland Sea of Rhûn, whence came many attacks on Gondorand its allies during the Third Ageof Middle-earth.
Almost nothing can be known of the lands beyond the
Sea of Rhûnfrom Tolkien's written work, though it is vaguely described in " The Fellowship of the Ring" as a realm of "wide uncharted lands, nameless plains, and forests unexplored". The wizard Gandalfhad never explored there, and though Aragornis said to have travelled there, there is no report of his doings.
Rhûn's ancient geography can be gleaned a little from "
The Silmarillion"; throughout most of the First Agethe vast Sea of Helcarwas located here and beyond that the Orocarni('red mountains'). Somewhere in the east, too, lay Cuiviénenand Hildórien, where Elves and Men first awoke: all the Children of Ilúvatarcould trace their ancestries back to the eastward regions of Middle-earth.
Rhûn was the domain of the Easterlings, Men of Darkness who were ready to follow both the Dark Lords and fought as their allies in war. These lands, too, were peopled by lost Elves,
Avariand Úmanyar, and by four of the seven clans of the Dwarves.
During the Third Age, Rhûn was visited by three Wizards;
Saruman, Alatarand Pallando, and though Saruman returned into the west, the two Blue Wizards remained or went to the south to the lands of Khand and beyond. Sauronhimself journeyed into the eastward lands, hiding there from the White Councilduring the centuries known in the west as the Watchful Peace. He seems to have had a second fortress somewhere in Rhûn where he dwelt during that time and earlier during the Second Age, as his original realms were in the East, not in Mordor. [http://lalaith.vpsurf.de/Tolkien/Fr_Men.html] This eastern abode of the Dark Lord is briefly noted in "The Silmarillion" as a place which he surrounded with fire. Dorwinionlies on the west side of the Sea of Rhûn. The Easterlingsof the Balchothand Wainriders mostly occupy the lands to the far east of the Sea of Rhûn, where they live on the nomadic steppes.
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