Google Books Ngram Viewer

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

1800 - 1869 1870 - 1933 1934 - 1941 1942 - 1975 1976 - 2000 boys and girls English
1800 - 1862 1863 - 1920 1921 - 1931 1932 - 1988 1989 - 2000 girls and boys English

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