Google Books Ngram Viewer

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

1880 - 1888 1889 - 1892 1893 - 1916 1917 - 1984 1985 - 2000 volapuk English
1880 - 1902 1903 - 1922 1923 - 1929 1930 - 1989 1990 - 2000 ido English
1880 - 1917 1918 - 1929 1930 - 1933 1934 - 1988 1989 - 2000 esperanto English
1880 - 1933 1934 - 1942 1943 1944 - 1989 1990 - 2000 basic english English

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