De antiquitate Paterni soli et de rebus Bulgaricis



De antiquitate Paterni soli et de rebus Bulgaricis ("On the antiquity of the fatherland and the deeds of the Bulgarians") is a historical treatise written in Latin by Bulgarian Catholic archbishop Petar Bogdan (1601–1674). Completed in 1667, it is the earliest modern written work on the history of Bulgaria, preceding Paisius of Hilendar's Istoriya Slavyanobolgarskaya and Blasius Kleiner's History of Bulgaria by nearly a century.

The existence of the treatise was known from Petar Bogdan's letters, but its text was regarded as lost. Part of the manuscript was discovered in the Vatican Library by Bozhidar Dimitrov in 1977; it included the introduction, the full text of the first three chapters and part of the fourth chapter. In 2017, Prof. Liliya Ilieva encountered the full text of the treatise in the University of Modena's Biblioteca Estense. All 70 chapters of the treatise were published as a book including a facsimile, a Bulgarian translation and commentary by Sofia University in 2020.

A reproduction of the treatise is being displayed as part of a temporary exhibition at the National Archaeological Museum in Sofia.