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Graph these comma-separated phrases:
case-insensitive
between and from the corpus with smoothing of .  
Search in Google Books:

1800 - 1835 1836 - 1961 1962 - 1971 1972 - 1985 1986 - 2008 a number of years was English
1800 - 1813 1814 - 1817 1818 - 1851 1852 - 1973 1974 - 2008 a number of them was English
1800 - 1822 1823 - 1842 1843 - 1851 1852 - 1956 1957 - 2008 a number of men was English
1800 - 1813 1814 - 1958 1959 - 1962 1963 - 1974 1975 - 2008 a number of people was English
1800 - 1915 1916 - 1941 1942 - 1945 1946 - 1988 1989 - 2008 a number of cases was English
1800 - 1818 1819 - 1871 1872 - 1874 1875 - 1986 1987 - 2008 a number of experiments was English
1800 - 1932 1933 - 1942 1943 1944 - 1997 1998 - 2008 a number of countries was English
1800 - 1905 1906 - 1942 1943 - 1944 1945 - 1954 1955 - 1965 a number of ships was English
1800 - 1950 1951 - 1976 1977 - 1978 1979 - 1996 1997 - 2008 a number of occasions was English
1800 - 1916 1917 - 1919 1920 - 1941 1942 - 1996 1997 - 2008 a number of others was English
1800 - 1832 1833 - 1944 1945 - 1956 1957 - 1986 1987 - 2008 a number of them were English
1800 - 1829 1830 - 1943 1944 - 1955 1956 - 1987 1988 - 2008 a number of people were English
1800 - 1830 1831 - 1919 1920 - 1933 1934 - 1969 1970 - 2008 a number of men were English
1800 - 1819 1820 - 1840 1841 - 1850 1851 - 1948 1949 - 2008 a number of persons were English
1800 - 1836 1837 - 1938 1939 - 1947 1948 - 1987 1988 - 2008 a number of others were English
1800 - 1867 1868 - 1938 1939 - 1946 1947 - 1994 1995 - 2008 a number of which were English
1800 - 1843 1844 - 1969 1970 - 1979 1980 - 1989 1990 - 2008 a number of these were English
1800 - 1861 1862 - 1950 1951 - 1961 1962 - 1996 1997 - 2008 a number of whom were English
1800 - 1834 1835 - 1875 1876 - 1888 1889 - 1991 1992 - 2008 a number of women were English
1800 - 1829 1830 - 1954 1955 - 1967 1968 - 1984 1985 - 2008 a number of children were English

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