Google Books Ngram Viewer

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

1800 - 1811 1812 - 1822 1823 - 1874 1875 - 1947 1948 - 2000 twas English
1800 - 1820 1821 - 1878 1879 - 1896 1897 - 1976 1977 - 2000 was English
1800 - 1820 1821 - 1921 1922 - 1940 1941 - 1980 1981 - 2000 a English
1800 - 1816 1817 - 1834 1835 - 1892 1893 - 1979 1980 - 2000 what English

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