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!What's the purpose of having an history ?
The goal is to be able to track the changes that happen to a page and also to prevent vandalism. If a bad person wants to clear all the page and the page is not write protected, it can do so. But as anybody has access to the history of the page, anybody can restore the page to its previous state.%%%
This can also be usefull if you want to make some diff between the pages to see what has changed between several edition. For example, let's say you contributed a page and several persons modify it in the same day. Perhaps would you like to see exactly what change have been made. In that case, you can use the history and make a diff between your version and the latest one to see exactly what has been changed.

!Accessing the history
Click on the history link in the edit area.

((history.png|History link))

You will be shown the history page.

((history_form.png|History form||History form|300|50))

As I'm currently editing the page while doing the screenshots you will see in this screenshot only 2 editions.
- The "delete" link is available only to moderators
- The "version" link can be used to see the version as it was
- The "date" link can be used to see the latest version available at that day. Url used have a special human readable form which makes it easy to access to the last version of a page in a particular day : For example, if you want to access to the last version of this page that has been made the 4th of February 2006, simply follows this link [http://wiclear.free.fr/?en/2006/02/04/Browsing|http://wiclear.free.fr/?en/2006/02/04/Browsing] for example.
- The "title" link is identical to the "version" link.
- You then have several other information like the author, the minor/major flag, the comment and the IP
- Finally you have "selectors"

The selector are used to select two different versions. You can then use the "diff" button to show the two versions at once. The diff algorithm will try to highlighte the differences so that you can easily spot the differences between the two versions.

((history_diff.png|History diff||History diff|300|50))

!The delete link
This link is available only to moderators. It is used to delete a particular version of the history. If this is the current version which is deleted, then the last available version in the history is restored.