Here is some general information about free space pages at wikitree.
http://www.wikitree.com/wiki/Free-Space_Profile
Normally, pages on Wikitree are for people, one page for one person. But sometimes it would be nice to create a page for something else a thing, a place, a source, a list, or just about anything you can think of.
Help Page for Free-space pages.
And some examples
The New London Texas School Explosion
The will of John Bachelor
New Haven Colony