Google Books Ngram Viewer

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

1900 - 1925 1926 - 1931 1932 1933 - 1984 1985 - 2000 hard as i tried English
1900 - 1945 1946 - 1969 1970 1971 - 2000 2001 - 2000 as hard as i tried English

Run your own experiment! Raw data is available for download here.
© 2013 Google - Privacy & Terms - About Google - About Google Books - About Ngram Viewer