R. J. Crampton has written:

'A short history of modern Bulgaria' -- subject(s): History

'A concise history of Bulgaria' -- subject(s): History, OverDrive, Nonfiction

'Bulgaria 1878-1918' -- subject(s): History

'The hollow detente' -- subject(s): Foreign relations, World War, 1914-1918, Eastern question (Balkan), Causes, History

'Bulgaria'

No, no relation. Kelts, keltic history has no connection even with Slav, Mizians, Thracian history.

Judging the history: both are true

Nikola Kondarev has written:

'Narodnite chitalishta v Bulgaria' -- subject(s): Bulgaria, History, Public libraries

Nino Ninov has written:

'History of Bulgaria in three lectures' -- subject(s): History