I recall a single incident from Roman history where Crassus crucified 6,000 slaves on the Appian Way. Things like this make me think you can't easily quantify w

I recall a single incident from Roman history where Crassus crucified 6,000 slaves on the Appian Way. Things like this make me think you can't easily quantify which slavery was the worst. Perhaps it was easier, in some contexts in Rome, to earn freedom, but perhaps you were more likely to be crucified too.