[Lucius Cornelius Sulla]

The last slave revolt of any great consequence was the famous Spartacus’s during the Roman Republic. There was never a major slave revolt under the Emperors. By the later Empire there was a major shortage of slaves to grow food, because slaves generally came from conquered non Romans. Once Rome ceased to conquer new territory it ceased to get new slaves. Tilling the soil was something that free Romans would not do, because agricultural income assumed that it was essentially unpaid.

[mountainlion]

So when they failed to conquer new territory they did not get to loot the gold and silver and goods for gain. Getting overrun from the north did not help either. I hope we do not get a similar losing cause.