Google Books Ngram Viewer

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

1800 - 1957 1958 - 1988 1989 - 1992 1993 - 1996 1997 - 2000 world war ii English
1800 - 1953 1954 - 1986 1987 - 1990 1991 - 1995 1996 - 2000 second world war English

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