| 501 | legendary date of foundation of Polish Principality | Leaders |
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| 964 | reign of first documented prince (Mieszko I) | Leaders |
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| 25 Dec 1024 | Polish Kingdom | Leaders |
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| 1031 | Polish Principality | Leaders |
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| 25 Dec 1076 | Polish Kingdom | Leaders |
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| Jun 1079 | Polish Principality | Leaders |
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| 28 Oct 1138 | divisions into several principalities, until 1180 under nominal coordination by one of the princes, styled Senior Polish Prince | Leaders |
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| 26 Jun 1295 - 8 Feb 1296 | Przemysl II styled Polish King | Leaders |
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| 20 Jan 1320 | all Poland, except for Silesia, reunited into Polish Kingdom | Leaders |
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| 1370 | kingship becomes elective, but de facto the Diet chooses the kings in hereditary order until 1572 | Leaders |
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| 4 Jul 1569 | Accord of Lublin, colloquially known as "Union of Lublin," joining Poland and Lithuania officially, but not constitutionally, into United Commonwealth of the Two Nations, in short, The Commonwealth | Leaders |
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| 6 Jul 1572 | last hereditary Polish king dies; power to elect the king moves from the Diet to the whole nobility; election as Polish king and grand prince of Lithuania is carried out jointly, but conduct of interregnum is separate | Leaders |
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| 3 May 1791 | constitution gives formal sanction to the union with Lithuania | Leaders |
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| 7 Jan 1795 | incorporated into Russia | Leaders |
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| 9 Jul 1807 | Duchy of Warsaw | Leaders |
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| 20 Jun 1815 - 5 Nov 1916 | Polish Kingdom, in (nominally personal, actually subordinate) union with Russia, established by the Congress of Vienna (thus often referred to by historians as Congress Poland) | Leaders |
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| 25 Jan 1831 - 26 Sep 1831 | "First Insurrection" | Leaders |
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| 22 Jan 1863 - Apr 1865 | "Second Insurrection" | Leaders |
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| 14 Jan 1917 | Polish Kingdom | Leaders |
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| 6 Nov 1918 | Polish State | Leaders |
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| 22 Nov 1918 | Polish Republic | Leaders |
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| 1 Sep 1939 | German invasion | Leaders |
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| 17 Sep 1939 | Soviet invasion | Leaders |
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| 6 Oct 1939 | last Polish troops capitulate; the German-occupied area is partly annexed to Germany, the other part becomes the General Government of Poland on 12 Oct 1939 | Leaders |
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| Jun 1941 | Germany takes over the Soviet-occupied areas; they are divided between the General Government and the Reichskommissariate Ostland and Ukraine, while the Bialystok district is "attached" (but not incorporated) to East Prussia | Leaders |
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| 1 Jan 1944 | Polish Republic | Leaders |
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| 1 Aug 1952 | Polish People's Republic | Leaders |
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| 30 Dec 1989 | Polish Republic | Leaders |
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| (from 20 Dec 1948, Polish U | nited Workers' Party) | Secretaries-general of the Polish Workers' (Communist) Party |
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| 23 Nov 1943 - 3 Sep 1948 | Wladyslaw Gomulka (1st time) | Secretaries-general of the Polish Workers' (Communist) Party |
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| 3 Sep 1948 - 12 Mar 1956 | Boleslaw Bierut | Secretaries-general of the Polish Workers' (Communist) Party |
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| 20 Mar 1956 - 21 Oct 1956 | Edward Ochab | Secretaries-general of the Polish Workers' (Communist) Party |
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| 21 Oct 1956 - 20 Dec 1970 | Wladyslaw Gomulka (2nd time) | Secretaries-general of the Polish Workers' (Communist) Party |
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| 20 Dec 1970 - 6 Sep 1980 | Edward Gierek | Secretaries-general of the Polish Workers' (Communist) Party |
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| 6 Sep 1980 - 18 Oct 1981 | Stanislaw Kania | Secretaries-general of the Polish Workers' (Communist) Party |
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| 18 Oct 1981 - 29 Jul 1989 | Wojciech Jaruzelski | Secretaries-general of the Polish Workers' (Communist) Party |
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| 29 Jul 1989 - 27 Jan 1990 | Mieczyslaw Rakowski | Secretaries-general of the Polish Workers' (Communist) Party |
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| 15 Sep 1697 - 16 Feb 1704 | August II "Mocny" (1st time) | Kings¹ |
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| 16 Feb 1704 - 4 Oct 1705 | Augustyn Michal Stefan Radziejowski (Interrex) (b. 1645 - d. 1705) | Kings¹ |
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| 4 Oct 1705 - 8 Aug 1709 | Stanislaw I Leszczynski (1st time) | Kings¹ |
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| 8 Aug 1709 - 1 Feb 1733 | August II "Mocny" (2nd time) | Kings¹ |
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| 1 Feb 1733 - 12 Sep 1733 | Teodor Andrzej Potocki (Interrex) | Kings¹ |
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| 12 Sep 1733 - 30 Jun 1734 | Stanislaw I Leszczynski (2nd time) | Kings¹ |
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| 30 Jun 1734 - 5 Oct 1763 | August III | Kings¹ |
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| 5 Oct 1763 - 25 Nov 1764 | Wladyslaw Aleksander Lubienski | Kings¹ |
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| 25 Nov 1764 - 7 Jan 1795 | Stanislaw II August Poniatowski | Kings¹ |
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| 14 Jan 1807 - 9 Jul 1807 | Stanislaw Malachowski | Chairman of the Governing Commission |
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| 9 Jul 1807 - 14 Mar 1813 | Fryderyk August | Wettin dynasty |
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| 14 Mar 1813 - 9 Jun 1815 | Wasilij Lanskoj | Chairman of the Supreme Provisional Council of the Duchy of Warsaw |
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| 20 Jun 1815 - 5 Nov 1916 | the emperors of Russia | Kings |
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| 25 Jan 1831 - 30 Jan 1831 | Wladyslaw Tomasz hrabia Ostrowski + Adam Jerzy ksiaze Czartoryski (b. 1770 - d. 1861) | Presidents of the National Government |
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| 30 Jan 1831 - 17 Aug 1831 | Adam Jerzy ksiaze Czartoryski | Presidents of the National Government |
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| 17 Aug 1831 - 7 Sep 1831 | Jan Stefan Krukowiecki | Presidents of the National Government |
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| 7 Sep 1831 - 26 Sep 1831 | Bonawentura Niemojowski | Presidents of the National Government |
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| 22 Jan 1863 - 10 Mar 1863 | Stefan Bobrowski Committee acting as Provisional National Government) together with Ludwik Mieroslawski (b. 1814 - d. 1878) Insurrection; in exile to 17 Feb 1863) | Presidents of the National Government |
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| 10 Mar 1863 - 19 Mar 1863 | Marian Langiewicz (dictator) | Presidents of the National Government |
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| 19 Mar 1863 - 20 Mar 1863 | Executive Dictatorial Commission - Józef Kajetan Janowski (b. 1832 - d. 1914) - Agaton Giller (b. 1831 - d. 1887) - Stefan Bobrowski (s.a.) | Presidents of the National Government |
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| 21 Mar 1863 - 24 May 1863 | Central National Committee acting as Provisional National Government - Józef Kajetan Janowski (s.a.) - Agaton Giller (s.a.) - Stefan Bobrowski (s.a.) - Karol Ruprecht (b. 1821 - d. 1875) - Oskar Awejde (b. 1837 - d. 1897) - Edward Siwinski (b. 1831 - d. 1897) | Presidents of the National Government |
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| 24 May 1863 - 1863 | Piotr Wysocki | Chairmen of the National Government |
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| 1863 - 14 Jun 1863 | Franciszek Dobrowolski (1st time) | Chairmen of the National Government |
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| 14 Jun 1863 - 17 Sep 1863 | Karol Majewski | Chairmen of the National Government |
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| 17 Sep 1863 - 17 Oct 1863 | Franciszek Dobrowolski (2nd time) | Chairmen of the National Government |
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| 17 Oct 1863 - 10 Apr 1864 | Romuald Traugutt | Head of the National Government (also styled Dictator) |
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| 10 Apr 1864 - Apr 1865 | Bronislaw Brzezinski | President of the National Government |
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| 14 Jan 1917 - 25 Aug 1917 | Waclaw Niemojowski | Chairmen of the Provisional Council of State |
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| 25 Aug 1917 - 27 Oct 1917 | Józef Mikulowski Pomorski (acting) | Chairmen of the Provisional Council of State |
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| 27 Oct 1917 - 14 Nov 1918 | Regency Council - Aleksander Kakowski (b. 1862 - d. 1938) - Prince Zdzislaw Lubomirski (b. 1865 - d. 1943) - Józef hrabia Ostrowski (b. 1850 - d. 1923) | Chairmen of the Provisional Council of State |
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| 14 Nov 1918 - 14 Dec 1922 | Józef Pilsudski | Head of State |
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| 14 Dec 1922 - 16 Dec 1922 | Gabriel Narutowicz | Presidents |
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| 16 Dec 1922 - 20 Dec 1922 | Maciej Rataj (1st time) (acting) | Presidents |
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| 20 Dec 1922 - 15 May 1926 | Stanislaw Wojciechowski | Presidents |
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| 15 May 1926 - 4 Jun 1926 | Maciej Rataj (2nd time) (acting) | Presidents |
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| 4 Jun 1926 - 30 Sep 1939 | Ignacy Moscicki | Presidents |
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| 12 Oct 1939 - 17 Jan 1945 | Hans Frank | Governor-general |
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| 15 Aug 1941 - Aug 1944 | Erich Koch | Chief of civil administration in the Bialystok district |
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| (from 1 Jan 1945, chairman | of the People's Council) | Chairman of the Presidium of the People's Council |
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| 1 Jan 1944 - 4 Feb 1947 | Boleslaw Bierut | Chairman of the Presidium of the People's Council |
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| 4 Feb 1947 | Franciszek Trabalski | Chairman of the Presidium of the People's Council |
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| 4 Feb 1947 - 5 Feb 1947 | Wladyslaw Kowalski | Chairman of the Presidium of the People's Council |
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| 5 Feb 1947 - 20 Nov 1952 | Boleslaw Bierut | President |
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| 20 Nov 1952 - 7 Aug 1964 | Aleksander Zawadzki | Chairmen of the Council of State |
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| 7 Aug 1964 - 12 Aug 1964 | Edward Ochab + Stanislaw Kulczynski (b. 1895 - d. 1975) + Oskar Ryszard Lange (b. 1904 - d. 1965) + Boleslaw Podedworny (b. 1898 - d. 1972) | Chairmen of the Council of State |
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| 12 Aug 1964 - 10 Apr 1968 | Edward Ochab | Chairmen of the Council of State |
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| 10 Apr 1968 - 23 Dec 1970 | Marian Spychalski | Chairmen of the Council of State |
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| 23 Dec 1970 - 28 Mar 1972 | Józef Cyrankiewicz | Chairmen of the Council of State |
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| 28 Mar 1972 - 6 Nov 1985 | Henryk Jablonski | Chairmen of the Council of State |
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| 6 Nov 1985 - 19 Jul 1989 | Wojciech Jaruzelski | Chairmen of the Council of State |
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| 19 Jul 1989 - 22 Dec 1990 | Wojciech Jaruzelski | Presidents |
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| 22 Dec 1990 - 23 Dec 1995 | Lech Walesa | Presidents |
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| 23 Dec 1995 - 23 Dec 2005 | Aleksander Kwasniewski | Presidents |
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| 23 Dec 2005 - | Lech Kaczynski | Presidents |
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| 19 Feb 1676-16/17Jan 1702 | Stanislaw Herakliusz Lubomirski | Grand marshals (chief ministers) |
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| 17 Jan 1702 - 15 Dec 1702 | Józef Karol Lubomirski | Grand marshals (chief ministers) |
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| 15 Dec 1702 - 24 Mar 1713 | Kazimierz Ludwik Bielinski | Grand marshals (chief ministers) |
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| 24 Mar 1713 - 2 Apr 1713 | Wojciech Andrzej Dambski (acting) | Grand marshals (chief ministers) |
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| 2 Apr 1713 - 20 May 1742 | Józef Wandalin Mniszech | Grand marshals (chief ministers) |
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| 21 May 1742 - 8 Oct 1766 | Franciszek Bielinski | Grand marshals (chief ministers) |
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| 10 Oct 1766 - 12 Aug 1783 | Stanislaw Lubomirski | Grand marshals (chief ministers) |
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| 12 Aug 1783 - 23 Aug 1783 | Franciszek Rzewuski | Grand marshals (chief ministers) |
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| 23 Aug 1783 - 8 Jul 1793 | Michal Jerzy Mniszech | Grand marshals (chief ministers) |
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| 1793 | Fryderyk Józef Moszynski | Grand marshals (chief ministers) |
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| 7 Dec 1917 - 27 Feb 1918 | Jan Kucharzewski (1st time) | Prime ministers |
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| 27 Feb 1918 - 4 Apr 1918 | Antoni Ponikowski | Prime ministers |
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| 4 Apr 1918 - 5 Sep 1918 | Jan Kanty Steczkowski | Prime ministers |
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| 5 Sep 1918 - 30 Sep 1918 | Stanislaw Dzierzbicki (acting) | Prime ministers |
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| 30 Sep 1918 - 2 Oct 1918 | Bohdan Broniewski (1st time) | Prime ministers |
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| 2 Oct 1918 - 9 Oct 1918 | Jan Kucharzewski (2nd time) | Prime ministers |
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| 9 Oct 1918 - 26 Oct 1918 | Bohdan Broniewski (2nd time) | Prime ministers |
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| 26 Oct 1918 - 4 Nov 1918 | Józef Swiezynski | Prime ministers |
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| 4 Nov 1918 - 14 Nov 1918 | Wladyslaw Wróblewski (acting) | Prime ministers |
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| 7 Nov 1918 - 14 Nov 1918 | Ignacy Daszynski | Head of the Provisional People's Government (at Lublin) |
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| 17 Nov 1918 - 19 Jan 1919 | Jedrzej Moraczewski | Prime ministers |
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| 19 Jan 1919 - 13 Dec 1919 | Ignacy Paderewski | Prime ministers |
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| 13 Dec 1919 - 23 Jun 1920 | Leopold Skulski | Prime ministers |
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| 23 Jun 1920 - 24 Jul 1920 | Wladyslaw Grabski (1st time) | Prime ministers |
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| 24 Jul 1920 - 19 Sep 1921 | Wincenty Witos (1st time) | Prime ministers |
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| 19 Sep 1921 - 26 Jun 1922 | Antonin Ponikowski | Prime ministers |
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| 26 Jun 1922 - 16 Jul 1922 | Artur Sliwinski | Prime ministers |
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| 16 Jul 1922 - 31 Jul 1922 | Wojciech Korfanty | Prime ministers |
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| 31 Jul 1922 - 16 Dec 1922 | Julian Ignacy Nowak | Prime ministers |
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| 16 Dec 1922 - 29 May 1923 | Wladyslaw Sikorski | Prime ministers |
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| 29 May 1923 - 19 Dec 1923 | Wincenty Witos (2nd time) | Prime ministers |
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| 19 Dec 1923 - 20 Nov 1925 | Wladyslaw Grabski (2nd time) | Prime ministers |
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| 20 Nov 1925 - 10 May 1926 | Aleksander hrabia Skrzynski | Prime ministers |
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| 10 May 1926 - 17 May 1926 | Wincenty Witos (3rd time) | Prime ministers |
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| 17 May 1926 - 2 Oct 1926 | Kazimierz Bartel (1st time) | Prime ministers |
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| 2 Oct 1926 - 27 Jun 1928 | Józef Pilsudski (1st time) | Prime ministers |
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| 27 Jun 1928 - 14 Apr 1929 | Kazimierz Bartel (2nd time) | Prime ministers |
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| 14 Apr 1929 - 29 Dec 1929 | Kazimierz Switalski | Prime ministers |
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| 29 Dec 1929 - 29 Mar 1930 | Kazimierz Bartel (3rd time) | Prime ministers |
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| 29 Mar 1930 - 25 Aug 1930 | Walery Slawek (1st time) | Prime ministers |
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| 25 Aug 1930 - 4 Dec 1930 | Józef Pilsudski (2nd time) | Prime ministers |
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| 4 Dec 1930 - 27 May 1931 | Walery Slawek (2nd time) | Prime ministers |
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| 27 May 1931 - 12 May 1933 | Aleksander Prystor | Prime ministers |
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| 12 May 1933 - 15 May 1934 | Janusz Jedrzejewicz | Prime ministers |
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| 15 May 1934 - 28 Mar 1935 | Leon Kozlowski | Prime ministers |
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| 28 Mar 1935 - 12 Oct 1935 | Walery Slawek (3rd time) | Prime ministers |
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| 12 Oct 1935 - 15 May 1936 | Marian Zyndram-Koscialkowski | Prime ministers |
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| 15 May 1936 - 30 Sep 1939 | Felicjan Slawoj-Skladkowski | Prime ministers |
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| 1 Jan 1945 - 4 Feb 1947 | Edward Osóbka-Morawski | Prime ministers |
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| 7 Feb 1947 - 20 Nov 1952 | Józef Cyrankiewicz (1st time) | Prime ministers |
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| 20 Nov 1952 - 19 Mar 1954 | Boleslaw Bierut | Prime ministers |
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| 19 Mar 1954 - 23 Dec 1970 | Józef Cyrankiewicz (2nd time) | Prime ministers |
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| 23 Dec 1970 - 18 Feb 1980 | Piotr Jaroszewicz | Prime ministers |
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| 18 Feb 1980 - 24 Aug 1980 | Edward Babiuch | Prime ministers |
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| 24 Aug 1980 - 9 Feb 1981 | Józef Pinkowski | Prime ministers |
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| 9 Feb 1981 - 6 Nov 1985 | Wojciech Jaruzelski | Prime ministers |
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| 6 Nov 1985 - 27 Sep 1988 | Zbigniew Messner | Prime ministers |
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| 27 Sep 1988 - 2 Aug 1989 | Mieczyslaw Rakowski | Prime ministers |
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| 2 Aug 1989 - 24 Aug 1989 | Czeslaw Kiszczak | Prime ministers |
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| 24 Aug 1989 - 4 Jan 1991 | Tadeusz Mazowiecki | Prime ministers |
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| 4 Jan 1991 - 5 Dec 1991 | Jan Krzysztof Bielecki | Prime ministers |
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| 6 Dec 1991 - 5 Jun 1992 | Jan Olszewski | Prime ministers |
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| 5 Jun 1992 - 8 Jul 1992 | Waldemar Pawlak (1st time) | Prime ministers |
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| 8 Jul 1992 - 26 Oct 1993 | Hanna Suchocka (f) | Prime ministers |
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| 26 Oct 1993 - 6 Mar 1995 | Waldemar Pawlak (2nd time) | Prime ministers |
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| 6 Mar 1995 - 7 Feb 1996 | Józef Oleksy | Prime ministers |
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| 7 Feb 1996 - 17 Oct 1997 | Wlodzimierz Cimoszewicz | Prime ministers |
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| 17 Oct 1997 - 31 Oct 1997 | Marek Belka (1st time) (acting) | Prime ministers |
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| 31 Oct 1997 - 19 Oct 2001 | Jerzy Buzek | Prime ministers |
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| 19 Oct 2001 - 2 May 2004 | Leszek Miller | Prime ministers |
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| 2 May 2004 - 31 Oct 2005 | Marek Belka (2nd time) | Prime ministers |
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| 31 Oct 2005 - 14 Jul 2006 | Kazimierz Marcinkiewicz | Prime ministers |
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| 14 Jul 2006 - 16 Nov 2007 | Jaroslaw Kaczynski | Prime ministers |
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| 16 Nov 2007 - | Donald Tusk | Prime ministers |
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