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4 gen 1385 anni - 1385年,中国在南京建立观象台

Descrizione:

地点：
人物：
意义：
补充：是世界上最早的设备完善的天文台

Aggiunto al nastro di tempo:

Ht

Bylee66
29 mar 2024
0
0
141

Data:

4 gen 1385 anni
Adesso
~ 640 years ago
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