Since the immigration population settled in San Telmo, tango became common in the district. The dance has its roots in dances such as the local Candombe traditions inherited from African slaves, the Spanish-Cuban music and dance Habanera, and Argentine Milonga music and dance. The tango partner dance flourished in the 1880s along the Río de la Plata, the river between Argentina and Uruguay. In particular, it developed in lower-class districts of Buenos Aires and Montevideo.