| YEAR | DATE | EVENT | HEAD OF STATE | PRIME MINISTER | 
| 1908 | 5 october | Empire -dinasty Saxe-Coburgo-Kohary | zar Ferdinando I | Aleksandur Pavlov Malinov (I) | 
| 1911 | 29 march |  |  | Ivan Evstratiev Geshov | 
| 1913 | 14 june |  |  | Stoyan Petrov Danev (II) | 
| 1913 | 17 july |  |  | Vasil Hristov Radoslavov (II) | 
| 1918 | 21 june |  |  | Aleksandur Pavlov Malinov (II) | 
| 1918 | 3 october |  | zar Boris III |  | 
| 1918 | 28 november |  |  | Todor Todorov | 
| 1919 | 6 october |  |  | Aleksandur Stroymenov Stamboliyski | 
| 1923 | 9 june |  |  | Aleksandur Tsolov Tsankov | 
| 1926 | 4 january |  |  | Andrey Tasev Lyapchev | 
| 1931 | 29 june |  |  | Aleksandur Pavlov Malinov (III) | 
| 1931 | 12 october |  |  | Nikola Stoykov Mushanov | 
| 1934 | 19 may |  |  | gen. Kimon Georgiev Stoyanov (I) | 
| 1935 | 22 january |  |  | Petur Ivanov Zlatev | 
| 1935 | 21 april |  |  | Andrey Slavev Toshev | 
| 1935 | 23 november |  |  | Georgi Ivanov Kyoseivanov | 
| 1940 | 16 february |  |  | Bogdan Dimitrov Filov |