The history of slavery covers slave systems in historical perspective
in which one human being is legally the property of another, can be bought or
sold, is not allowed to escape and must work for the owner without any choice
involved. As Drescher (2009) argues, "The most crucial and frequently utilized
aspect of the condition is a communally recognized right by some individuals to
possess, buy, sell, discipline, transport, liberate, or otherwise dispose of the
bodies and behavior of other individuals."[1] A integral element
is that children of a slave mother automatically become slaves.[2] It does not include
historical forced labor by prisoners, labor camps, or other forms of
unfree
labor in which laborers are not considered property.