Why did the Romans turn out in their tens of thousands to watch brutal gladiatorial games? Previous studies have tried to explain the attraction of the arena by theorizing about its cultural function in Roman society. The games have been seen as celebrations of the violence of empire or of Rome's martial heritage, or as manifestations of the emperor's power. The desire to watch has therefore been limited to the Roman context and rendered alien to modern sensibilities. Yet the historical record reveals that people living in quite different times and circumstances (including our own) have...