
There's a British superstition that, "if the Tower of London ravens are lost or fly away, the Crown will fall and Britain with it." The six ravens are believed to have come to the tower in the late 1600s, during the reign of Charles II, and possibly in response to the Great Fire of London—although some legends suggest they were in 1536, watching calmly over the execution of Ann Boleyn, and later, of Lady Jane Grey. — Read the rest