The banjo is a stringed instrument with, typically, four or five strings, which vibrate a membrane of plastic material or animal hide stretched over a circular frame.
Simpler forms of the instrument were fashioned by enslaved Africans in Colonial America, adapted from several African instruments of the same basic design.
There are several ideas on where the name banjo came from. It may derive from the Kimbundu term mbanza.
Some etymologists believe it comes from a dialectal pronunciation of the Portuguese "bandore" or from an early anglicisation of the Spanish word "bandurria", though other research suggests that it may come from a Senegambian term for a bamboo stick formerly used for the instrument's neck