| Dates | Prime minister
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| March 23 – June 12, 1861 | Camillo Benso conte di Cavour
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| June 12, 1861 – March 3, 1862 | Bettino Ricasoli
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| March 3 – December 8, 1862 | Urbano Rattazzi
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| December 8, 1862 – March 24, 1863 | Luigi Carlo Farini
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| March 24, 1863 – September 28, 1864 | Marco Minghetti
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| September 28, 1864 – June 20, 1866 | Alfonso Ferrero la Marmora
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| June 20, 1866 – April 10, 1867 | Bettino Ricasoli (2nd time)
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| April 10, 1867 – October 27, 1867 | Urbano Rattazzi (2nd time)
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| October 27, 1867 – December 14, 1869 | Federico Luigi, Conte Menabrea
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| December 14, 1869 – July 10, 1873 | Giovanni Lanza
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| July 10, 1873 – March 25, 1876 | Marco Minghetti (2nd time)
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| March 25, 1876 – March 24, 1878 | Agostino Depretis
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| March 24 – December 19, 1878 | Benedetto Cairoli
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| December 19, 1878 – July 14, 1879 | Agostino Depretis (2nd time)
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| July 14, 1879 – May 29, 1881 | Benedetto Cairoli (2nd time)
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| May 29, 1881 – July 29, 1887 | Agostino Depretis (3rd time)
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| July 29 1887 – February 6, 1891 | Francesco Crispi
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| February 6, 1891 – May 15, 1892 | Antonio Starabba, Marchese di Rudinì
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| May 15, 1892 – December 15, 1893 | Giovanni Giolitti
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| December 15, 1893 – March 10, 1896 | Francesco Crispi (2nd time)
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| March 10, 1896 – June 29, 1898 | Antonio Starabba, Marchese di Rudinì (2nd time)
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| June 29, 1898 – June 24, 1900 | Luigi Pelloux
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| June 24, 1900 – February 15, 1901 | Giuseppe Saracco
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| February 15, 1901 – November 3, 1903 | Giuseppe Zanardelli
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| November 3, 1903 – March 12, 1905 | Giovanni Giolitti (2nd time)
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| March 12 – March 28, 1905 | Tommaso Tittoni
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| March 28, 1905 – February 8, 1906 | Alessandro Fortis
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| February 8 – May 29, 1906 | Sidney Sonnino
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| May 29, 1906 – December 11, 1909 | Giovanni Giolitti (3rd time)
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| December 11, 1909 – March 31, 1910 | Sidney Sonnino (2nd time)
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| March 31, 1910 – March 30, 1911 | Luigi Luzzatti
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| March 30, 1911 – March 21, 1914 | Giovanni Giolitti (4th time)
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| March 21, 1914 – June 18, 1916 | Antonio Salandra
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| June 18, 1916 – October 29, 1917 | Paolo Boselli
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| October 29, 1917 – June 23, 1919 | Vittorio Emanuele Orlando
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| June 23, 1919 – June 15, 1920 | Francesco Saverio Nitti
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| June 15, 1920 – July 4, 1921 | Giovanni Giolitti (5th time)
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| July 4, 1921 – February 26, 1922 | Ivanoe Bonomi
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| February 26, 1922 – October 31, 1922 | Luigi Facta
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| October 31, 1922 – July 25, 1943 | Benito Mussolini (il Duce)
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| July 25, 1943- April 17, 1944 | General Pietro Badoglio (Provisional Military Government)
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| April 22, 1944 – June 18, 1944 | General Pietro Badoglio (Provisional Military Government) (2nd time)
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| June 18, 1944 – December 10, 1944 | Ivanoe Bonomi (2nd time)
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| December 12, 1944 – June 19, 1945 | Ivanoe Bonomi (3rd time)
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| June 21, 1945 – December 8, 1945 | Ferruccio Parri
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| December 10, 1945 – July 1, 1946 | Alcide De Gasperi
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| July 13, 1946 – January 28, 1947 | Alcide De Gasperi (2nd time)
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| February 2, 1947 – May 31, 1947 | Alcide De Gasperi (3rd time)
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| May 31, 1947 – May 23, 1948 | Alcide De Gasperi (4th time)
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| May 23, 1948 – January 12, 1950 | Alcide De Gasperi (5th time) (First government with a parliament democratically elected by universal suffrage)
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| January 27, 1950 – July 16, 1951 | Alcide De Gasperi (6th time)
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| July 26, 1951 – June 29, 1953 | Alcide De Gasperi (7th time)
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| July 16, 1953 – July 28, 1953 | Alcide De Gasperi (8th time)
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| August 17, 1953 – January 5, 1954 | Giuseppe Pella
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| January 18, 1954 – January 30, 1954 | Amintore Fanfani
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| February 10, 1954 – June 22, 1955 | Mario Scelba
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| July 6, 1955 – May 6, 1957 | Antonio Segni
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| May 19, 1957 – June 19, 1958 | Adone Zoli
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| July 1, 1958 – January 26, 1959 | Amintore Fanfani (2nd time)
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| February 15, 1959 – February 24, 1960 | Antonio Segni (2nd time)
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| March 25, 1960 – July 19, 1960 | Fernando Tambroni
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| July 26, 1960 – February 2, 1962 | Amintore Fanfani (3rd time)
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| February 21, 1962 – May 16, 1963 | Amintore Fanfani (4th time)
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| June 21, 1963 – November 5, 1963 | Giovanni Leone
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| December 4, 1963 – June 26, 1964 | Aldo Moro
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| July 22, 1964 – January 21, 1966 | Aldo Moro (2nd time)
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| February 23, 1966 – June 5, 1968 | Aldo Moro (3rd time)
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| June 24, 1968 – November 19, 1968 | Giovanni Leone (2nd time)
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| December 12, 1968 – July 5, 1969 | Mariano Rumor
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| August 5, 1969 – February 7, 1970 | Mariano Rumor (2nd time)
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| March 27, 1970 – July 6, 1970 | Mariano Rumor (3rd time)
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| August 6, 1970 – January 15, 1972 | Emilio Colombo
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| February 17, 1972 – February 26, 1972 | Giulio Andreotti
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| June 26, 1972 – June 12, 1973 | Giulio Andreotti (2nd time)
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| July 7, 1973 – March 2, 1974 | Mariano Rumor (4th time)
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| March 14, 1974 – October 3, 1974 | Mariano Rumor (5th time)
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| November 23, 1974 – January 7, 1976 | Aldo Moro (4th time)
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| February 12, 1976 – April 30, 1976 | Aldo Moro (5th time)
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| July 29, 1976 – January 16, 1978 | Giulio Andreotti (3rd time)
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| March 11, 1978 – January 31, 1979 | Giulio Andreotti (4th time)
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| March 20, 1979 – March 31, 1979 | Giulio Andreotti (5th time)
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| August 4, 1979 – March 19, 1980 | Francesco Cossiga
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| April 4, 1980 – September 28, 1980 | Francesco Cossiga (2nd time)
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| October 18, 1980 – May 26, 1981 | Arnaldo Forlani
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| June 28, 1981 – August 7, 1982 | Giovanni Spadolini
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| August 23, 1982 – November 13, 1982 | Giovanni Spadolini (2nd time)
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| December 1, 1982 – May 2, 1983 | Amintore Fanfani (5th time)
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| August 4, 1983 – June 27, 1986 | Bettino Craxi
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| August 1, 1986 – March 3, 1987 | Bettino Craxi (2nd time)
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| April 17, 1987 – April 28, 1987 | Amintore Fanfani (6th time)
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| July 28, 1987 – March 11, 1988 | Giovanni Goria
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| April 13, 1988 – May 19, 1989 | Ciriaco De Mita
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| July 22, 1989 – March 29, 1991 | Giulio Andreotti (6th time)
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| April 14, 1991 – April 24, 1992 | Giulio Andreotti (7th time)
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| June 28, 1992 – April 28, 1993 | Giuliano Amato
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| April 28, 1993 – April 16, 1994 | Carlo Azeglio Ciampi
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| May 10, 1994 – December 22, 1994 | Silvio Berlusconi
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| January 17, 1995 – January 11, 1996 | Lamberto Dini
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| May 17, 1996 – October 9, 1998 | Romano Prodi
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| October 21, 1998 – December 18, 1999 | Massimo D'Alema
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| December 22, 1999 – April 19, 2000 | Massimo D'Alema (2nd time)
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| April 25, 2000 – May 31, 2001 | Giuliano Amato (2nd time)
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| June 10, 2001 – April 20, 2005 | Silvio Berlusconi (2nd time)
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| April 23, 2005 – today | Silvio Berlusconi (3rd time)
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