Era
(Logic)
1
-Problems
2
1478-1798
1
1564-1616
1
1642-1727 - Knowledge - Science - Congresses
1
1642-1727. Principia - Congresses
2
16th century
1
16th century --
2
1750 - 1918
1
1756-1791
1
1770-1831
1
1772-1823
1
1772-1834
1
1775 - 1783
1
1780-1831
1
1783 - 1789
1
1789-1900
1
17th century
2
1800-1837
1
1801-1917
1
1801-1917 - Sources
1
1804-1881
1
1809-1898
1
1812-1870 --
1
1819-1975
1
1837-1901
2
1853-1910
1
1857-1919
1
1859-1935-
1
1861 -1912
1
1861-1865
1
1866-1953
1
1867-1918
1
1868-
2
1868-1945
1
1869 - 1948 -- Political and social views
1
1869-1948
1
1870-1940
1
1871-1918
5
1879-1953
1
1893-
3
1893-1982
1
1894-1917
1
18th century
2
1900-
7
1900-1984
1
1901-1936
1
1904-
1
1905-1969
1
1908-
1
more ...