Aman

(conjectural)

The continent on which the Valar made their home after the destruction of Almaren. There they founded Valinor, and there dwelt the Calaquendi; the Vanyar, the Noldor and those of the Teleri who journeyed from Middle-earth long before the First Age Light-elves, the Deep-elves and the Sea-elves. There were dwellers in Aman before the Valar, though; Ungoliant had long existed in the southern land of Avathar.

To protect their realm from Melkor, the Valar raised a great range of mountains along the borders of Aman; the Pelóri or Mountains of Defence. They also filled the seas eastwards with shadows and Enchanted Isles.

In II 3319, King Ar-Pharazôn of Númenor, having been seduced and corrupted by Sauron, sailed on Aman with a great fleet. The King and his armies were destroyed, as was the land of Númenor, and Aman was taken out of the World. After that catastrophe, only the Elves could reach the Blessed Realm.