Google Books Ngram Viewer

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

1800 - 1897 1898 - 1934 1935 - 1941 1942 - 1996 1997 - 2008 safety bicycle English
1800 - 1977 1978 - 1985 1986 1987 - 1999 2000 - 2008 upright bicycle English

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