Mirkwood

Mirkwood, later known as Eryn Lasgalen and formerly known as Greenwood is a location in The Hobbit and The Lord of the Rings. It was a large Woodland in Rhovanion, and a realm ruled by King Thranduil.
==Background==
The Greenwood was a large woodland in Rhovanion. Along with the nearby woodland of Lorinand, It was first populated by Elves trying to get from Lake Cuivienen to the Far West. From then on out, the Elves called it Greenwood. Some of the Elves dreaded the crossing of the Misty Mountains west of Greenwood and stayed there, becoming the Silvan Elves, although some of them later did continue west, becoming the Green Elves of Beleriand.
It was later bisected by the Dwarf Road, constructed by Dwarves in an attempt to link their realm of Khazad Dum with their mansions in the Iron Hills. Later still it become the dwelling place of men (who in turn fled from the east where other Men were swayed by Sauron). Some of these Men would go on to migrate west into Beleriand, becoming the Men of the houses of Beor and Hador. Their kin that remained in Rhovanion became the Northmen, and those that remained specifically in Mirkwood were called the Woodsmen of Greenwood. The Skin-Changers were also descended from these.