sentences:  He later served the Sublime Porte in various positions of authority as a bureaucrat.In 1863, thanks to his knowledge of Serbian, he was appointed to serve as a secretary and interpreter to Ahmet Cevdet Pasha, Ottoman statesman and historian, on a fact-finding mission to Bosnia and Herzegovina which lasted for twenty months, from the spring of 1863 to October 1864.The events of this mission were recorded in his "La Bosnie et l'Herzégovine pendant la mission de Djevdet Efendi", Constantinople 1865 (Bosnia and Herzegovina during the mission of Jevdet Efendi).