diff --git a/README.rst b/README.rst
index d58a05b..f8fed2b 100644
--- a/README.rst
+++ b/README.rst
@@ -62,6 +62,14 @@ Mark user 123 as active and has played a song:
         ->mark('active', 123)
         ->mark('song:played', 123)
     ;
+    
+Or...
+
+.. code-block:: php
+
+    $bitter
+        ->mark(['active', 'song:played'], 123)
+    ;
 
 **Note**: Please don't use huge ids (e.g. 2^32 or bigger) cause this will require large amounts of memory.
 
diff --git a/src/FreeAgent/Bitter/Bitter.php b/src/FreeAgent/Bitter/Bitter.php
index 3ec82a2..6051796 100644
--- a/src/FreeAgent/Bitter/Bitter.php
+++ b/src/FreeAgent/Bitter/Bitter.php
@@ -55,28 +55,35 @@ public function setRedisClient($redisClient)
     /**
      * Marks an event for hours, days, weeks and months
      *
-     * @param string   $eventName The name of the event, could be "active" or "new_signups"
+     * @param string|array   $eventName The name of the event, could be "active" or "new_signups"
      * @param integer  $id        An unique id, typically user id. The id should not be huge, read Redis documentation why (bitmaps)
      * @param DateTime $dateTime  Which date should be used as a reference point, default is now
      */
-    public function mark($eventName, $id, DateTime $dateTime = null)
+    public function mark($eventNames, $id, DateTime $dateTime = null)
     {
+        $eventNames = is_array($eventNames) ? $eventNames : array($eventNames);
         $dateTime = is_null($dateTime) ? new DateTime : $dateTime;
 
-        $eventData = array(
-            new Year($eventName, $dateTime),
-            new Month($eventName, $dateTime),
-            new Week($eventName, $dateTime),
-            new Day($eventName, $dateTime),
-            new Hour($eventName, $dateTime),
-        );
-
-        foreach ($eventData as $event) {
-            $key = $this->prefixKey . $event->getKey();
-            $this->getRedisClient()->setbit($key, $id, 1);
-            $this->getRedisClient()->sadd($this->prefixKey . 'keys', $key);
+        $pipe = $this->getRedisClient()->pipeline();
+
+        foreach ($eventNames as $key => $eventName) {
+            $eventData = array(
+                new Year($eventName, $dateTime),
+                new Month($eventName, $dateTime),
+                new Week($eventName, $dateTime),
+                new Day($eventName, $dateTime),
+                new Hour($eventName, $dateTime),
+            );
+
+            foreach ($eventData as $event) {
+                $key = $this->prefixKey . $event->getKey();
+                $pipe->setbit($key, $id, 1);
+                $pipe->sadd($this->prefixKey . 'keys', $key);
+            }
         }
 
+        $pipe->execute();
+
         return $this;
     }
 
diff --git a/tests/units/Bitter.php b/tests/units/Bitter.php
index baa0a60..85a3f21 100644
--- a/tests/units/Bitter.php
+++ b/tests/units/Bitter.php
@@ -133,6 +133,90 @@ public function testMarkUnitOfTime($redisClient)
         $this->removeAll($redisClient);
     }
 
+    /**
+     * @dataProvider dataProviderTestedClients
+     */
+    public function testMultipleMarks($redisClient)
+    {
+        $bitter = new TestedBitter($redisClient, $this->getPrefixKey(), $this->getPrefixTempKey());
+
+        $this->removeAll($redisClient);
+
+        $dateTime = DateTime::createFromFormat('Y-m-d H:i:s', '2012-11-06 15:30:45');
+
+        $events = array(
+            'drink_a_bitter_beer',
+            'drink_another_bitter_beer',
+            'pass_out',
+        );
+
+        foreach ($events as $event) {
+            $day = new Day($event, $dateTime);
+
+            $this
+                ->integer($bitter->count($day))
+                ->isIdenticalTo(0)
+            ;
+            $this
+                ->boolean($bitter->in(404, $day))
+                ->isFalse()
+            ;
+        }
+
+
+        $this
+            ->object($bitter->mark($events, 404, $dateTime))
+            ->isIdenticalTo($bitter)
+        ;
+
+        foreach ($events as $event) {
+            $day = new Day($event, $dateTime);
+
+            $this
+                ->integer($bitter->count($day))
+                ->isIdenticalTo(1)
+            ;
+            $this
+                ->boolean($bitter->in(404, $day))
+                ->isTrue()
+            ;
+        }
+
+
+        // Adding it a second time with the same dateTime !
+        $this
+            ->object($bitter->mark($events, 404, $dateTime))
+            ->isIdenticalTo($bitter)
+        ;
+
+        foreach ($events as $event) {
+            $day = new Day($event, $dateTime);
+            $this
+                ->integer($bitter->count($day))
+                ->isIdenticalTo(1)
+            ;
+            $this
+                ->boolean($bitter->in(404, $day))
+                ->isTrue()
+            ;
+        }
+
+        $this->removeAll($redisClient);
+
+        $day = new Day('drink_a_bitter_beer', new DateTime());
+        $this
+            ->boolean($bitter->in(13, $day))
+            ->isFalse()
+        ;
+        $bitter->mark('drink_a_bitter_beer', 13);
+        $this
+            ->boolean($bitter->in(13, $day))
+            ->isTrue()
+        ;
+
+        $this->removeAll($redisClient);
+    }
+
     /**
      * @dataProvider dataProviderTestedClients
      */