Google Books Ngram Viewer

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

1800 - 1839 1840 - 1961 1962 - 1976 1977 - 1991 1992 - 2008 obwohl German
1800 - 1810 1811 - 1833 1834 - 1843 1844 - 1946 1947 - 2008 obgleich German
1800 - 1818 1819 - 1833 1834 - 1843 1844 - 1955 1956 - 2008 obschon German
1800 - 1851 1852 - 1966 1967 - 1981 1982 - 1994 1995 - 2008 wenngleich German
1800 - 1804 1805 - 1824 1825 - 1832 1833 - 1938 1939 - 2008 wiewohl German

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