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.
Wrestling
Sambo is a martial art that originated in the Soviet Union (specifically Russia) in the 20th century. It is an acronym for "self-defence without weapons" in Russian and had its origins in the Soviet armed forces. Its influences are varied, with techniques borrowed from sports ranging from the two international wrestling styles of Greco-Roman and freestyle to judo, jujitsu, European styles of folk wrestling, and even fencing. The rules for sport sambo are similar to those in competitive judo, with a variety of leg locks and defense holds from the various national wrestling styles in the Soviet Union, while not allowing chokeholds.