Google Books Ngram Viewer

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

1700 - 1754 1755 - 1864 1865 - 1887 1888 - 1966 1967 - 2000 circle English
1700 - 1820 1821 - 1900 1901 - 1916 1917 - 1972 1973 - 2000 square English
1700 - 1750 1751 - 1914 1915 - 1937 1938 - 1960 1961 - 2000 triangle English
1700 - 1741 1742 1743 - 1833 1834 - 1996 1997 - 2000 rectangle English
1700 - 1825 1826 - 1885 1886 - 1902 1903 - 1980 1981 - 2000 sphere English

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