Google Books Ngram Viewer

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

1800 - 1834 1835 - 1977 1978 - 1986 1987 - 1993 1994 - 2000 ser escritor Spanish
1800 - 1964 1965 - 1993 1994 - 1996 1997 - 1999 2000 formación como escritor Spanish
1800 - 1850 1851 - 1900 1901 - 1909 1910 - 1987 1988 - 2000 escuela de escritores Spanish

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