The gladiator is one of the most enduring figures of Ancient Rome. Heroic, though of lowly status, they fought vicious duels in large arenas filled with baying crowds. The survivor could be either executed (the famous 'thumbs down' signal) or spared at the whim of the crowd or the Emperor. Few lasted more than a dozen fights, yet they were a valuable asset to their owners. But how did they fight and how did their weapons and techniques develop?...