 Nero had provided a similar entertainment at an event he had staged using an actor dressed in the costume of a bull, though Martial claims that the act performed at the inaugural games was authentic.Dio, Suetonius and Martial all record "naumachiae", the commonly used Greek term for what the Romans also called "navalia proelia", re-creations of famous sea battles.While Dio claims that both the purpose-built "naumachia" of Augustus and the amphitheatre itself were flooded for two separate shows, Suetonius states only that the event took place on the old artificial lake (which would have been that of Augustus).