Were blacks the only group enslaved in America?

No, blacks were not the only group enslaved in America. While the transatlantic slave trade primarily involved the enslavement of Africans, Native Americans and, to a lesser extent, individuals of European descent, including indentured servants, also faced forms of slavery and servitude. Various groups experienced different systems of forced labor throughout American history, but the scale and brutality of African slavery were unique in their impact and legacy.