How Long Did Roman Slavery Last?

Answer 1

The slavery in the Roman Era lasted until the fall of the Empire. It has been calculated that at least 25% of the population of the Empire was enslaved. In Italy the percentage was between 30 and 40% as it is noted by several scholars.

Answer 2

Slavery lasted longer than the Roman Empire. It began thousands of years before the Romans existed and continued until at least 1887.