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AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
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7 abr 1977 año - 723 AD - Yi Xing invents the mechanical clock
Descripción:
China
Añadido al timeline:
Humanities Timeline (With some random birthdayz)
By
Sarah LeDoux
6 nov 2019
1
0
216
fecha:
7 abr 1977 año
Ahora mismo
~ 48 years ago
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