| 1396 | part of Ottoman Empire | Leaders |
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| 8 Jul 1879 | Principality of Bulgaria (under Ottoman suzerainty) | Leaders |
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| 5 Oct 1908 | Tsardom of Bulgaria | Leaders |
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| 15 Sep 1946 | People's Republic of Bulgaria | Leaders |
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| 15 Nov 1990 | Republic of Bulgaria | Leaders |
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| 11 Aug 1948 - 2 Jul 1949 | Georgi Dimitrov | General secretaries of the Bulgarian Communist Party |
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| 1949 - 4 Mar 1954 | Vulko Chervenkov | General secretaries of the Bulgarian Communist Party |
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| 4 Mar 1954 - 10 Nov 1989 | Todor Zhivkov | General secretaries of the Bulgarian Communist Party |
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| 10 Nov 1989 - 2 Feb 1990 | Petur Mladenov | General secretaries of the Bulgarian Communist Party |
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| 8 Jul 1879 - 21 Aug 1886 | Aleksandur (1st time) | Battenberg dynasty |
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| 21 Aug 1886 - 24 Aug 1886 | Kliment (regent) | Battenberg dynasty |
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| 24 Aug 1886 - 28 Aug 1886 | Petko Karavelov (regent) | Battenberg dynasty |
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| 28 Aug 1886 - 29 Aug 1886 | Princely administrators - Stefan Stambolov (b. 1854 - d. 1895) - Petko Slaveykov (b. 1827 - d. 1895) - Georgi Stranski (b. 1847 - d. 1904) | Battenberg dynasty |
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| 29 Aug 1886 - 7 Sep 1886 | Aleksandur (2nd time) | Battenberg dynasty |
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| 7 Sep 1886 - 14 Aug 1887 | Regency Council - Stefan Stambolov (s.a.) - Petko Karavelov (s.a.) - Georgi Zhivkov (b. 1844 - d. 1899) - Sava Mutkurov (b. 1852 - d. 1891) | Battenberg dynasty |
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| 14 Aug 1887 - 5 Oct 1908 | Ferdinand I | Saxe-Coburg-Gotha dynasty |
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| 5 Oct 1908 - 3 Oct 1918 | Ferdinand I | Saxe-Coburg-Gotha dynasty |
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| 27 Sep 1918 - 30 Sep 1918 | Rayko Ivanov Daskalov | Saxe-Coburg-Gotha dynasty |
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| 3 Oct 1918 - 28 Aug 1943 | Boris III | Saxe-Coburg-Gotha dynasty |
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| 28 Aug 1943 - 15 Sep 1946 | Simeon II | Saxe-Coburg-Gotha dynasty |
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| 28 Aug 1943 - 14 Sep 1943 | Bogdan Filov (regent) | Saxe-Coburg-Gotha dynasty |
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| 14 Sep 1943 - 21 Sep 1943 | Dobri Bozhilov (regent) | Saxe-Coburg-Gotha dynasty |
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| 21 Sep 1943 - 9 Sep 1944 | Regency Council - Knyaz Kiril (b. 1895 - d. 1945) - Bogdan Filov (s.a.) - Nikola Mihov (b. 1891 - d. 1945) | Saxe-Coburg-Gotha dynasty |
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| 9 Sep 1944 - 15 Sep 1946 | Regency Council - Venelin Yordanov Ganev (b. 1880 - d. 1966) - Todor Dimitrov Pavlov (b. 1890 - d. 1977) - Tsvetko Boboshevski (b. 1884 - d. 1952) | Saxe-Coburg-Gotha dynasty |
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| 15 Sep 1946 - 9 Dec 1947 | Vasil Kolarov | Chairman of the Provisional Presidency |
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| 9 Dec 1947 - 27 May 1950 | Mincho Neychev | Chairmen of the Presidium of the National Assembly |
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| 27 May 1950 - 27 Nov 1958 | Georgi Damyanov | Chairmen of the Presidium of the National Assembly |
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| 27 Nov 1958 - 30 Nov 1958 | Georgi Kulishev (1st time) + Nikolay Georgiev (1st time) (b. 1906 - d. 1987) | Chairmen of the Presidium of the National Assembly |
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| 30 Nov 1958 - 20 Apr 1964 | Dimitur Ganev | Chairmen of the Presidium of the National Assembly |
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| 20 Apr 1964 - 23 Apr 1964 | Georgi Kulishev (2nd time) + Nikolay Georgiev (2nd time) (s.a.) | Chairmen of the Presidium of the National Assembly |
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| 23 Apr 1964 - 7 Jul 1971 | Georgi Traykov | Chairmen of the Presidium of the National Assembly |
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| 7 Jul 1971 - 17 Nov 1989 | Todor Zhivkov | Chairmen of the State Council |
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| 17 Nov 1989 - 3 Apr 1990 | Petur Mladenov | Chairmen of the State Council |
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| 3 Apr 1990 - 6 Jul 1990 | Petur Mladenov | Presidents |
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| 6 Jul 1990 - 17 Jul 1990 | Stanko Todorov (acting) | Presidents |
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| 17 Jul 1990 - 1 Aug 1990 | Nikolay Todorov (acting) | Presidents |
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| 1 Aug 1990 - 22 Jan 1997 | Zhelyu Zhelev | Presidents |
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| 22 Jan 1997 - 22 Jan 2002 | Petur Stoyanov | Presidents |
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| 22 Jan 2002 - | Georgi Purvanov | Presidents |
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| 17 Jul 1879 - 6 Dec 1879 | Todor Stoyanov Burmov | Prime ministers |
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| 6 Dec 1879 - 7 Apr 1880 | Kliment (1st time) | Prime ministers |
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| 8 Apr 1880 - 10 Dec 1880 | Dragan Kiriakov Tsankov (1st time) | Prime ministers |
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| 10 Dec 1880 - 9 May 1881 | Petko Karavelov (1st time) | Prime ministers |
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| 9 May 1881 - 13 Jul 1881 | Yohan Kazimir Ernrot | Prime ministers |
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| 5 Jul 1882 - 19 Sep 1883 | Leonid Sobolev | Prime ministers |
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| 19 Sep 1883 - 11 Jul 1884 | Dragan Kiriakov Tsankov (2nd time) | Prime ministers |
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| 12 Jul 1884 - 21 Aug 1886 | Petko Karavelov (2nd time) | Prime ministers |
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| 21 Aug 1886 - 24 Aug 1886 | Kliment (2nd time) | Prime ministers |
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| 24 Aug 1886 - 28 Aug 1886 | Petko Karavelov (3rd time) | Prime ministers |
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| 28 Aug 1886 - 10 Jul 1887 | Vasil Radoslavov (1st time) | Prime ministers |
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| 11 Jul 1887 - 1 Sep 1887 | Konstantin Stoilov (1st time) | Prime ministers |
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| 1 Sep 1887 - 31 May 1894 | Stefan Stambolov | Prime ministers |
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| 31 May 1894 - 30 Jan 1899 | Konstantin Stoilov (2nd time) | Prime ministers |
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| 30 Jan 1899 - 13 Oct 1899 | Dimitur Panayotov Grekov | Prime ministers |
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| 13 Oct 1899 - 25 Jan 1901 | Todor Ivanchov | Prime ministers |
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| 25 Jan 1901 - 5 Mar 1901 | Racho Petrov (1st time) | Prime ministers |
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| 5 Mar 1901 - 3 Jan 1902 | Petko Karavelov (4th time) | Prime ministers |
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| 4 Jan 1902 - 19 May 1903 | Stoyan Petrov Danev (1st time) | Prime ministers |
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| 19 May 1903 - 4 Nov 1906 | Racho Petrov (2nd time) | Prime ministers |
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| 5 Nov 1906 - 11 Mar 1907 | Dimitur Petkov | Prime ministers |
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| 12 Mar 1907 - 16 Mar 1907 | Dimitur Stanchov | Prime ministers |
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| 16 Mar 1907 - 29 Jan 1908 | Petur Todorov Gudev | Prime ministers |
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| 29 Jan 1908 - 29 Mar 1911 | Aleksandur Malinov (1st time) | Prime ministers |
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| 29 Mar 1911 - 14 Jun 1913 | Ivan Evstratiev Geshov | Prime ministers |
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| 14 Jun 1913 - 17 Jul 1913 | Stoyan Petrov Danev (2nd time) | Prime ministers |
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| 17 Jul 1913 - 21 Jun 1918 | Vasil Radoslavov (2nd time) | Prime ministers |
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| 21 Jun 1918 - 28 Nov 1918 | Aleksandur Malinov (2nd time) | Prime ministers |
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| 28 Nov 1918 - 6 Oct 1919 | Teodor Teodorov | Prime ministers |
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| 7 Oct 1919 - 9 Jun 1923 | Aleksandur Stamboliyski | Prime ministers |
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| 9 Jun 1923 - 4 Jan 1926 | Aleksandur Tsankov | Prime ministers |
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| 4 Jan 1926 - 29 Jun 1931 | Andrey Lyapchev | Prime ministers |
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| 29 Jun 1931 - 12 Oct 1931 | Aleksandur Malinov (3rd time) | Prime ministers |
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| 12 Oct 1931 - 19 May 1934 | Nikola Mushanov | Prime ministers |
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| 19 May 1934 - 22 Jan 1935 | Kimon Georgiev (1st time) | Prime ministers |
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| 22 Jan 1935 - 21 Apr 1935 | Petko Ivanov Zlatev | Prime ministers |
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| 21 Apr 1935 - 23 Nov 1935 | Andrey Toshev | Prime ministers |
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| 23 Nov 1935 - 15 Feb 1940 | Georgi Kyoseivanov | Prime ministers |
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| 15 Feb 1940 - 12 Sep 1943 | Bogdan Filov | Prime ministers |
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| 12 Sep 1943 - 14 Sep 1943 | Petur Gabrovski (acting) | Prime ministers |
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| 14 Sep 1943 - 1 Jun 1944 | Dobri Bozhilov | Prime ministers |
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| 1 Jun 1944 - 2 Sep 1944 | Ivan Ivanov Bagrianov | Prime ministers |
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| 2 Sep 1944 - 9 Sep 1944 | Konstantin Vladov Muraviev | Prime ministers |
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| 9 Sep 1944 - 22 Nov 1946 | Kimon Georgiev (2nd time) | Prime ministers |
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| 23 Nov 1946 - 2 Jul 1949 | Georgi Dimitrov | Chairmen of the Council of Ministers (premiers) |
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| 2 Jul 1949 - 23 Jan 1950 | Vasil Kolarov | Chairmen of the Council of Ministers (premiers) |
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| 23 Jan 1950 - 18 Apr 1956 | Vulko Chervenkov | Chairmen of the Council of Ministers (premiers) |
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| 18 Apr 1956 - 27 Nov 1962 | Anton Yugov | Chairmen of the Council of Ministers (premiers) |
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| 27 Nov 1962 - 9 Jul 1971 | Todor Zhivkov | Chairmen of the Council of Ministers (premiers) |
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| 9 Jul 1971 - 18 Jun 1981 | Stanko Todorov | Chairmen of the Council of Ministers (premiers) |
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| 18 Jun 1981 - 24 Mar 1986 | Grisha Filipov | Chairmen of the Council of Ministers (premiers) |
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| 24 Mar 1986 - 8 Feb 1990 | Georgi Atanasov | Chairmen of the Council of Ministers (premiers) |
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| 8 Feb 1990 - 20 Dec 1990 | Andrey Lukanov | Chairmen of the Council of Ministers (premiers) |
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| 20 Dec 1990 - 8 Nov 1991 | Dimitur Popov | Prime ministers |
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| 8 Nov 1991 - 30 Dec 1992 | Filip Dimitrov | Prime ministers |
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| 30 Dec 1992 - 17 Oct 1994 | Lyuben Berov | Prime ministers |
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| 17 Oct 1994 - 25 Jan 1995 | Reneta Indzhova (f) (interim) | Prime ministers |
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| 25 Jan 1995 - 12 Feb 1997 | Zhan Videnov | Prime ministers |
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| 12 Feb 1997 - 21 May 1997 | Stefan Sofiyanski (interim) | Prime ministers |
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| 21 May 1997 - 24 Jul 2001 | Ivan Kostov | Prime ministers |
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| 24 Jul 2001 - 16 Aug 2005 | Simeon Sakskoburggotski | Prime ministers |
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| 16 Aug 2005 - | Sergey Stanishev | Prime ministers |
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