An exhibition at Trajan's Markets celebrates the anniversary of the Edict of Milan in 313 – a pact between Constantine in the west and Licinius in the Balkans that resolved to treat the Christians benevolently.

Under the patronage of the Pontifical Council for Culture, the exhibition subtitled The Edict of Constantine 1,700 years later comprises some 50 engravings by Veljko Mihajlović.

The Serbian artist created the aquatints based on the emperor Constantine and his mother Helena, two important figures in the history of Christianity, during his travels to see frescoes in churches and monasteries across southern Europe.