… Merchants in the South Atlantic and the Practice of Free Trade (1797-1809)," a lecture by Fabricio Prado. … The Latin … Merchants in the South Atlantic and the Practice of Free Trade (1797-1809)," a lecture by Fabricio Prado. The Latin … Merchants in the South Atlantic and the Practice of Free Trade (1797-1809),” a lecture by Fabricio Prado. Fabrício …