Events in the year 1865 in Brazil. Incumbents Monarch: Pedro II Prime Minister: Francisco José Furtado (until 12 May) Marquis of Olinda (starting 12 May) Events 10 June - Battle of São Borja Births April 28 - Vital Brazil, biomedical scientist and immunologist (died 1950) May 5 - Cândido Rondon, military officer (died 1958) References