Which string instrument was invented in America?

Few musical instruments are more deeply connected to the American experience than the banjo. The banjo was created by enslaved Africans and their descendants in the Caribbean and colonial North America. Here, they maintained and perpetuated the tradition within a complex system of slave-labor camps, plantations, and in a variety of rural and urban settings. From the earliest references in the 17th century, and through the 1830s, the banjo was exclusively known as an African-American tradition with a West African heritage. What further distinguishes the banjo is that it did not come from Africa “as-is” as an unaltered tradition. Rather, the banjo’s creation was the result of a blending of West African and European forms.

Source: Smithsonian Music