MediaWiki:Undeleteextrahelp
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To restore the entire page and its history, leave all checkboxes deselected and click Undelete. To perform a selective restoration, check the boxes corresponding to the revisions to be restored and click Undelete. Selecting a box, then shift selecting another will fill all boxes in between in many browsers. Please make sure that you are following undeletion policy and that you leave a summary in the comment box.