The Italian luxury liner SS Principessa Mafalda sinks off the coast of Brazil, killing 314.

SS Principessa Mafalda was an Italian transatlantic ocean liner built for the Navigazione Generale Italiana (NGI) company. Named after Princess Mafalda of Savoy, second daughter of King Victor Emmanuel III, the ship was completed and entered NGI's South American service between Genoa and Buenos Aires in 1909. Her sister ship SS Principessa Jolanda sank immediately upon launching on 22 September 1907.