He was a professor of ancient history at the University of Bucharest, author of Marele Dicționar Geografic al României (The Great Geographical Dictionary of Romania), general secretary of the Romanian Ministry of Teaching and multiple times senator, with conservative political views.

After finishing primary and secondary school in Ploieşti, Tocilescu went to Bucharest where he graduated from the Saint Sava National College.

At the death of Romanian historian, Romantic author, academic and politician Vasile Alexandrescu Urechia, November 21, 1901, Tocilescu delivered the funeral oration.

It makes a brief history of the Roman Republic, after which it lists the emperors of the West and the East until the establishment of the Turkish rule in Europe and ends with the first battles of the Turks with the Romanians in 1489.

[2] Returning to the country, he was appointed the director of the National Museum of Antiquities and held the position of professor of ancient history and epigraphy at the University of Bucharest (1881).