Drganov was born in Komrat, Russian Empire in 1857. In ethnic sense he was a Bulgarian born in Bessarabia. Draganov studied history and philology at the University of Sankt Petersburg. In the period from 1885 - 1887 he was working as a teacher in Thessaloniki after he was invited by the Bulgarian Exarchate.
He came in Thessaloniki with the claim that the people of Macedonia are Bulgarians. However, after the huge research that he has done in Macedonia he came up with his own scientific opinion about the ethnicity of the Macedonian people. In other words, Draganov claimed that Macedonia is a separate ethno-geographic unit of the Balkans and the Macedonian dialects form separate language. As a result of this claim and his personal beliefs, he was sent back to Russia, where he set the foundations of the Macedonistics.
- Кузман Шапкарев - „За възраждането на българщината в Македония“, София, 1984, стр. 594
- акад. Блаже Ристовски - „Македонистот Петар Драганов“
- Петар Драганов - „1888:A New Work on the Ethnography of the Macedonian Slavs“
- Macedonia and the Macedonians: a history By Andrew Rossos
- 1888:A New Work on the Ethnography of the Macedonian Slavs, Petar Draganov