--- a/Model/TagInterface.php	Fri Dec 09 04:53:56 2011 +0100
+++ b/Model/TagInterface.php	Fri Dec 09 06:43:49 2011 +0100
@@ -218,6 +218,11 @@
     function getCategory();
     
     /**
+     * return the utc time when this tag has been created
+     */
+    function getCreatedAt();
+    
+    /**
      * Get Documents
      *
      * @return ArrayCollection
@@ -236,5 +241,6 @@
      * @param $wikipedia_info
      */
     function setWikipediaInfo($wikipedia_info);
+        
     
 }
\ No newline at end of file