Portal:History of science/Selected anniversaries/September 20
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51:Congregation for the Doctrine of the Faith
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108:, Hungarian mathematician (b. 1913)
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96:, Austrian zoologist (b. 1802)
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104:- Death of
92:- Death of
82:James Dewar
80:- Birth of
68:- Death of
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106:Paul Erdős
20: |
55:Earth
16:<
102:1996
90:1884
78:1842
66:1815
43:1633
59:Sun
45:-
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