When many people think of slavery, they think of the translatlantic trade that took place between Africa, the Americas and the Caribbean. The legacy of enslavement in the Americas (particularly in the United States) is known globally through the cultural and political impact of African-American iconography, films, history and references in popular culture. For many people of African descent across the world, it is one of the clearest historical links that binds us together, even if we do not have west African or American ancestry.
This episode is also available as a blog post: http://mediadiversified.org/2016/05/04/an-introduction-to-the-indian-ocean-slave-trade/