Google Books Ngram Viewer

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

1800 - 1978 1979 - 1984 1985 1986 - 2004 2005 - 2008 aikido English
1800 - 1968 1969 - 1999 2000 - 2001 2002 - 2004 2005 - 2008 karate English
1800 - 1850 1851 - 1958 1959 - 1966 1967 - 2000 2001 - 2008 judo English
1800 - 1904 1905 1906 - 1936 1937 - 2001 2002 - 2008 jujutsu English
1800 - 1871 1872 - 1997 1998 - 1999 2000 - 2003 2004 - 2008 kendo English

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