This is a demo site for the Freesites system at www.freesites.com.au. The page you're currently looking at is the History page. This is a normal page, which means you are able to delete it, as well as edit it in every other way.
This page has been set up as a "sub page" of the About us page, which means it will appear "attached" to it in the site menu, either beneath it (in designs with vertical navigation) or hidden in a drop down menu (in designs with horizontal navigation).
Please note: This demo website is reset to its default content on the hour, every hour, at which point any changes you have made will be overwritten.