Samba, also known as samba urbano carioca or simply samba carioca is a Brazilian music genre that originated in the Afro-Brazilian communities of Rio de Janeiro in the early 20th century. Having its roots in the cultural expression of West Africa and in Brazilian folk traditions, especially those linked to the primitive rural samba of the colonial and imperial periods, is considered one of the most important cultural phenomena in Brazil and one of the country symbols. Present in the Portuguese language at least since the 19th century, the word "samba" was originally used to designate a "popular dance". Over time, its meaning has been extended to a "batuque-like circle dance", a dance style, and also to a "music genre". This process of establishing itself as a musical genre began in the 1910s and it had its inaugural landmark in the song "Pelo Telefone", launched in 1917. Despite being identified by its creators, the public, and the Brazilian music industry as "samba", this pioneering style was much more connected from the rhythmic and instrumental point of view to maxixe than to samba itself.