Google Books Ngram Viewer

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

1940 - 1942 1943 - 1953 1954 - 1955 1956 - 1968 1969 - 1970 vicky English
1940 - 1946 1947 - 1958 1959 1960 - 1970 1971 - 1970 vicki English

Run your own experiment! Raw data is available for download here.
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