Google Books Ngram Viewer

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

1808 - 1914 1915 - 1953 1954 - 1957 1958 - 1965 1966 - 1967 billion English
1808 - 1875 1876 - 1943 1944 - 1948 1949 - 1961 1962 - 1967 thousand million English
1808 - 1905 1906 - 1936 1937 - 1940 1941 - 1959 1960 - 1967 milliard English

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