Google Books Ngram Viewer

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

1970 - 1994 1995 - 2001 2002 2003 - 2004 2005 - 2008 czech republic English
1970 - 1975 1976 - 2000 2001 - 2002 2003 - 2005 2006 - 2008 czechia English
1970 - 1971 1972 - 1974 1975 - 1977 1978 - 2001 2002 - 2008 bohemia English

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