What were the three major causes of slavery prior to life in the American colonies?

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The three major causes of slavery prior to life in the American colonies were debt, crime, and war. In many ancient societies, individuals who were unable to pay off debts or who were convicted of crimes were enslaved. Additionally, prisoners of war were often taken as slaves by conquering armies. Gender, politics, racism, religion and ethnicity may have played a role in enslavement in some societies, but they were not the primary causes.

What Were the Three Major Causes of Slavery Prior to Life