"My heart burnt within me with indignation and grief; we could think of nothing else ... Every one is feeling the same. I never knew so universal a feeling." (Elizabeth Gaskell 1865)

Slavery is the idea that a human is someones property, that he/she can be bought, sold and owned; and forced to work without being paid. This concept has been around for thousands of years and all major civilizations used slaves at some point.