Differences Between Slavery, Caste System

While reading chapter 7, 0n systems and social stratification I came across many differences between slavery, caste and class system. Slavery is defined as a form of social stratification, when people are owned by another but there were ways to get out of slavery. Slavery is different around the world and was believed to be a racial thing but in the text it tells us slavery was intended to pay off debts or due to a crime committed or through war while holding someone from the opponent hostage. Though caste is a form of social stratification, it differs because birth determines status, and remains throughout one’s life. It would be impossible to leave or change from this form of social stratification no matter what you try to achieve. An individual