The NOWYOUKNOW project

Unfortunately it does.

Slavery is a legal or economic system under which people are treated as property. While laws and systems vary, as property, slaves may be bought and sold. Slaves can be held from the time of their capture, purchase or birth, and deprived of the right to leave, to refuse to work, or to demand compensation.

Historically, slavery was institutionally recognized by most societies; in more recent times, slavery has been outlawed in all countries, but it continues.