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.
Languages in Paraguay. The majority of the population is bilingual, able to speak Spanish and Guarani as well as Jopara. Spanish is a European language while Guarani is a Native American language spoken primarily in Paraguay and also in some parts of Argentina, Brazil and Bolivia. Five million of the population mostly mestizos can speak and understand this indigenous language. As a diglossic nation, it has two official languages.