Google Books Ngram Viewer

Graph these comma-separated phrases:
case-insensitive
between and from the corpus with smoothing of .  
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1800 - 1922 1923 - 1981 1982 - 1987 1988 - 1995 1996 - 2008 syllabuses English
1800 - 1913 1914 - 1985 1986 - 1994 1995 - 2001 2002 - 2008 syllabi English

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