1859 in philosophy

	… 1849; 1850; 1851; 1852; 1853; 1854; 1855; ; 1856; 1857; 1858; 1859; 1860; 1861; 1862; ; 1863; 1864; 1865; 1866; 1867; 1868; 1869 …;
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1859 in philosophy