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22 Dez 1933 Jahr - December 22, 1933 5:52:00 am Some oxygen converted to ozone to form a protective layer against UV radiation First life on surface of ocean/land possible because of protection from ultraviolet radiation
Zugefügt zum Band der Zeit:
1 Okt 2018
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396
Timeline of Earth Redone
Datum:
22 Dez 1933 Jahr
Jetzt
~ 90 years ago