Transcription: William the Conqueror built the Tower after the Battle of Hastings in 1066. Henry VII founded the Yeoman of the Guard in the 15th century. They are now known as beef eaters because of a recorded fondness for roast beef and they are the world's oldest military call. Like most of London's historic buildings, the Tower is not an abandoned monument but instead a small self-contained community with its own rules and and its own residence. John Wilmington is the Raven Master, responsible for the fierce birds. Their clipped wings guarantee that they, like many a prisoner before them, will never escap ...