1240 Year 1303 Year 1596 Year 1600 Year 1631 Year 1638 Year 1645 Year 1659 Year 1761 Year 1793 Year 1795 Year 1798 Year 1824 Year 1829 Year 1831 Year 1847 Year 1849 Year 1856 Year 1857 Year 1858 Year 1859 Year 1861 Year 1867 Year 1868 Year 1874 Year 1877 Year 1878 Year 1879 Year 1885 Year 1886 Year 1887 Year 1889 Year 1892 Year 1894 Year 1896 Year 1897 Year 1898 Year 1899 Year 1900 Year 1904 Year 1905 Year 1907 Year 1908 Year 1909 Year 1910 Year 1911 Year 1913 Year 1914 Year 1916 Year 1917 Year 1918 Year 1919 Year 1920 Year 1922 Year 1924 Year 1926 Year 1928 Year 1930 Year 1931 Year 1932 Year 1933 Year 1936 Year 1940 Year 1942 Year 1948 Year 1949 Year 1950 Year 1951 Year 1952 Year 1953 Year 1955 Year 1956 Year 1958 Year 1959 Year 1960 Year 1961 Year 1964 Year 1965 Year 1966 Year 1967 Year 1968 Year 1969 Year 1970 Year 1971 Year 1972 Year 1973 Year 1974 Year 1975 Year 1976 Year 1977 Year 1978 Year 1979 Year 1980 Year 1981 Year 1982 Year 1983 Year 1984 Year 1985 Year 1986 Year 1987 Year 1988 Year 1989 Year 1990 Year 1991 Year 1992 Year 1993 Year 1994 Year 1995 Year 1996 Year 1997 Year 1998 Year 1999 Year 2000 Year

January
March
April
May
June
July
August
September
October
November
December

16- December-1997	Mamata Banerjee, Congress(I) rebel, declares that she would seek recognition and separate symbol for her "Trinamul Congress'' and contest elections on her own.
29- December-1997	Sonia Gandhi stepped into active politics.