Thracology (; ) is the scientific study of Ancient Thrace and Thracian antiquities and is a regional and thematic branch of the larger disciplines of ancient history and archaeology. A practitioner of the discipline is a Thracologist. Thracology investigates the range of ancient Thracian culture (language, literature, history, religion, art, economics and ethics) from 1000 BC up to the end of Roman rule in the 4th–7th centuries AD. Modern Thracology (as opposed to an antiquarian interest in the land of Thrace) started with the work of Wilhelm Tomaschek in the late 19th century. Thracology in Bulgaria In the second part of the 20th century, Bulgarian historian Alexander Fol founded the Institute of Thracology in the Bulgarian Academy of Science. With subsequently ever-increasing Thracian tombs unearthing, the study of the Ancient Thracian civilization was able to proceed with greater academic rigor. Thracology in Romania Since Dacians are considered a branch of the Thracians by most mainstream research and historical sources, Romanian historians and archaeologists have also been heavily involved in Thracology since at least the 19th century. The related term Thraco-Dacology also exists, alluding to Thraco-Dacian, and one of the first uses is from around 1980, in the Romanian government archive. But since other theories sustain that Daco-Thracian relation is not as strong as originally thought, Dacology may evolve as an independent discipline from Thracology. Unfortunately, the terms Dacology/Dacologist have been negatively affected by the association with protochronism and risk to be severely compromised, prompting some reputable Romanian researchers to call themselves Thracologists instead of Dacologists, even in the context of their research being focused more on Dacians than on Thracians, and even without necessarily promoting a strong connection between the two peoples. The Romanian Thracology Institute I.G Bibicescu, part of Romanian Academy and based in Bucharest, was founded in 1976, after the 2nd International Congress of Thracology held in September of same year in Bucharest. One of his first directors was the thracologist Dumitru Berciu (1907–1998). Thracologists Researchers who have been noted in the field of Thracology include: Gavril Katsarov – Bulgarian historian, classical philologist and archeologist Vladimir I. Georgiev – Bulgarian linguist Georgi Kitov – Bulgarian archaeologist Alexander Fol – Bulgarian Thracologist Ion Niculiţă – Moldavian archaeologist Sorin Olteanu – Romanian Thracologist, focused on Thraco-Daco-Moesian languages Engin Beksac – Turkish archaeologist and art historian Bogdan Petriceicu Hasdeu – Romanian Daco-Thracologist and historian Ion I. Russu- Romanian Daco-Thracologist and historian