Google Books Ngram Viewer

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

1950 - 1983 1984 - 1998 1999 2000 2001 - 2006 shishapangma English
1950 - 1955 1956 - 1997 1998 - 1999 2000 - 2002 2003 - 2008 shisha pangma English
1950 - 1982 1983 - 1988 1989 - 1988 1989 - 1995 1996 - 2003 xixabangma English

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