Samba is a lively, rhythmical dance of Afro-Brazilian origin in 2/4 time danced to Samba music whose origins include the Maxixe.
Samba is a dance authentic to black/African people in Brazil who brought much of their music and dance culture into Latin America with them upon arrival into many Latin American countries. Samba music is very similar to and has been influenced by many Angolan music genres. It has also been influenced by many other Latin American music genres and dances. The Samba music rhythm has been danced in Brazil since its inception in the late 16th century. There is actually a set of dances, rather than a single dance, that define the Samba dancing scene in Brazil; however, no one dance can be claimed with certainty as the "original" Samba style.
Another major stream of the Samba dance besides the Brazilian Samba dancing styles is Ballroom Samba, which differs significantly.