Google Books Ngram Viewer

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

1800 - 1914 1915 - 1989 1990 - 1996 1997 - 2001 2002 - 2008 a friendly place English
1800 - 1858 1859 - 1874 1875 - 1885 1886 - 1987 1988 - 2008 a friendly greeting English
1800 - 1911 1912 - 1952 1953 - 1958 1959 - 1999 2000 - 2008 a friendly person English

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