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1 Jan 1899 Jahr - Ac
Beschreibung:
Актиний
открыли Андре-Луи Дебьерн
Zugefügt zum Band der Zeit:
Chemical timeline
By
Маргарита
12 Nov 2018
0
0
550
Datum:
1 Jan 1899 Jahr
Jetzt
~ 126 years ago
Abbildungen:
Geo-Kennzeichen:
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