The word, tango, is Argentine Spanish and is believed to come from a term describing an African-American drum dance.
Bolivia has three official languages one of which is Spanish. The other are Indian languages one is called Aymara and the other is called Quechua. About one third of the people speak Spanish. But, most natural born Bolivians speak either of the two orignal native languages.
Spanish and Quechua are spoken primarily in the Andes region; Aymara is mainly spoken in the Altiplano around Lake Titicaca, Chiquitano is spoken in the central part of Santa Cruz and GuaranÃ­ in the southeast on the border with Paraguay. 1 List of official languages.