Google Books Ngram Viewer

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

1910 - 1919 1920 - 1921 1922 - 1932 1933 - 1994 1995 - 2008 great war English
1910 - 1947 1948 - 1952 1953 - 1972 1973 - 2000 2001 - 2008 world war i English
1910 - 1943 1944 - 1946 1947 - 1963 1964 - 1995 1996 - 2008 first world war English
1910 - 1937 1938 - 1960 1961 - 1967 1968 - 1999 2000 - 2008 world war English

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