Click the green flag. Press the space bar every time the space bar appears on screen, but I recommend you wait a bit before pressing it. This is an animation of the fall of Rome. Updates V.2: Slower pace allowing you to process the information better, the map of Rome separated transformed from the not separated Rome at a more appropriate time, added definition boxes, and corrected the spelling of Germanic. V.3: Now says "The Visigoths and the Huns were a Germanic tribe. Germanic tribes were not Romans" after that the Visigoths ask for protection is said. Also, Definition boxes now come at end instead of when the Visigoths ask for protection. V.4: Now you have to press space bar after every section to move on, so you are able to process the information a bit. A space bar will appear on the screen if you need to press it.
Sources Spielvogel, Jackson J., The National Geographic Society. /World History Journey Across Time The Early Ages/.New York: The McGraw-Hills Companies, Inc., 2008. Print.