Google Books Ngram Viewer

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

1870 - 1948 1949 - 1994 1995 - 1998 1999 - 2002 2003 - 2008 romania English
1870 - 1920 1921 - 1938 1939 - 1942 1943 - 1977 1978 - 2008 rumania English
1870 - 1892 1893 - 1917 1918 - 1921 1922 - 1963 1964 - 2008 roumania English

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