Google Books Ngram Viewer

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

1800 - 1824 1825 - 1967 1968 - 1979 1980 - 1990 1991 - 2000 some people English
1800 - 1809 1810 - 1817 1818 - 1848 1849 - 1941 1942 - 2000 some persons English

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