Samba
Although samba exists throughout Brazil – especially in the states of Bahia, Maranhão, Minas Gerais, and São Paulo – in the form of various popular rhythms and dances that originated from the regional batuque of the eastern Brazilian state of Bahia, a music form from Cape Verde, samba is frequently identified as a musical expression of urban Rio de Janeiro, where it developed during the first years of the 20th century. Early styles of samba - and specifically samba de roda - are traced back to the Recôncavo region of Bahia during the 17th century, and the informal dancing following a candomblé ceremony. It was in Rio de Janeiro that the dance practiced by former slaves who migrated from Bahia came into contact with and incorporated other genres played in the city (such as the polka, the maxixe, the lundu, and the xote), acquiring a completely unique character and creating the "samba carioca urbana" (samba school) and "carnavalesco" (Carnaval school director). Samba schools are large organizations of up to 5,000 people which compete annually in the Carnival with thematic floats, elaborate costumes, and original music.
Salsa (dance)
Salsa is a popular form of social dance originating from Cuban folk dances. The movements of Salsa are a combination of Afro-Cuban dance, Son, cha-cha-cha, mambo and other dance forms. The dance, along with salsa music, saw major development in the mid-1970s in New York. Different regions of Latin America and the United States have distinct salsa styles of their own, such as Cuban, Puerto Rican, Cali Colombia, L.A. and New York styles. Salsa dance socials are commonly held in night clubs, bars, ballrooms, restaurants, and outside, especially when part of an outdoor festival.