Google Books Ngram Viewer

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

1800 - 1819 1820 - 1822 1823 1824 - 1931 1932 - 2000 mushroom catsup English
1800 - 1813 1814 - 1873 1874 - 1878 1879 - 1955 1956 - 2000 mushroom ketchup English
1800 - 1820 1821 - 1823 1824 - 1864 1865 - 1942 1943 - 2000 walnut catsup English
1800 - 1854 1855 - 1868 1869 - 1874 1875 - 1973 1974 - 2000 walnut ketchup English
1800 - 1895 1896 - 1908 1909 - 1913 1914 - 1975 1976 - 2000 tomato catsup English
1800 - 1911 1912 - 1983 1984 - 1989 1990 - 1995 1996 - 2000 tomato ketchup English
1800 - 1854 1855 - 1987 1988 - 1992 1993 - 1996 1997 - 2000 ketchup English
1800 - 1847 1848 - 1940 1941 - 1949 1950 - 1987 1988 - 2000 catsup English

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