Google Books Ngram Viewer

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

1800 - 1814 1815 - 1839 1840 - 1851 1852 - 1949 1950 - 2000 acknowledgment English
1800 - 1813 1814 - 1976 1977 - 1986 1987 - 1993 1994 - 2000 acknowledgement English
1800 - 1812 1813 - 1824 1825 - 1866 1867 - 1958 1959 - 2000 judgment English
1800 - 1818 1819 - 1971 1972 - 1982 1983 - 1992 1993 - 2000 judgement English

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