Google Books Ngram Viewer

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

1500 - 1729 1730 - 1831 1832 - 1850 1851 - 1948 1949 - 2018 spires English

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