Confidential Print: Latin America, 1833-1969 This link opens in a new windowPart of the British Government's Confidential Print series, issued between 1820 and 1970, these primary sources cover slavery and the slave trade, immigration, relations with indigenous peoples, wars and territorial disputes, the fall of the Brazilian monarchy, British business and financial interests, industrial development, the building of the Panama Canal, and the rise to power of populist rulers such as Perón in Argentina and Vargas in Brazil.