During the late 18th century, the Viceroyalty of the Río de la Plata functioned as a primary terminal for the transatlantic slave trade. Thousands of enslaved people from West and Central Africa arrived at the port of Buenos Aires before being marched toward regional markets or forced into domestic servitude, agriculture, and artisanal trades. By the time Argentina began its fight for independence in 1810, demographic surveys showed that Afro-Argentines comprised roughly 30% of the population of Buenos Aires. In north-central provinces like Santiago del Estero, Catamarca, and Córdoba, people of African descent represented over 40% to 54% of registered inhabitants.
Afro-Argentine regiments formed the backbone of General José de San Martín’s liberation army. San Martín actively recruited enslaved men by promising freedom in exchange for five years of military service in the Army of the Andes. These battalions suffered brutal casualties across the mountain passes and battlefields of Chile and Peru. Their sacrifice earned military respect, but it also initiated a demographic imbalance: thousands of young Black men perished while fighting for a republic that would marginalize their descendants.
Enslaved women remained in urban centers, purchasing freedom through communal mutual-aid societies called naciones. These community hubs preserved African dialects, traditions, and musical forms along the muddy banks of the Río de la Plata. Far from being a statistical anomaly, Black community life defined the sounds, culinary habits, and daily labor of Buenos Aires throughout the early decades of the 19th century.
