History: Object history. Description DTML Documents and Methods keep a history of their contents. This view allows you to browse, compare, and revert to old versions. Controls Historical revisions are described by a date, a user and a URL. This describes at what time by whom and at what URL the object was changed. Click on a historical version to view the object as it existed at a given point in history. '[Checkbox]' -- Select a historical revision. 'Copy to present' -- Changes the object to the same state as the selected historical revision. 'Compare' -- Summarizes the difference between two historical revisions. If you select one historical revision it will be compared to the current state. The comparison shows the changes needed to change the older revision to match the newer revision.