Bogdan Dimitrov Filov was a Bulgarian archaeologist, art historian and politician. He was prime minister of Bulgaria during World War II. During his tenure, Bulgaria became the seventh nation to join
The Tsardom of Bulgaria, also known as the Third Bulgarian Tsardom, commonly known in English as the Kingdom of Bulgaria, or simply Bulgaria, was a constitutional monarchy in Southeastern Europe, whic
Ferdinand I of Bulgaria at the proclamation of Bulgarian independence, 1908
Boundaries on the Balkans after the First and the Second Balkan War (1912–1913)
Areas where Bulgarians were the majority of the population (in light green) according to Anastas Ishirkov (1912).