The wizards were sent to Middle-earth with the mission of guiding the world to a more peaceful future after the war between Morgoth and the Valar was too destructive during the First Age.

the twelve-volume History of Middle-earth (1983–1996), the three great tales of the First Age, as well as several books on various non-Middle-earth mythologies, such as on the Nibelungenlied ...

Middle-earth offers diverse locations ranging ... to be anyone's number one choice for a home—at least, not during the Third ...