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19 mar 1975 año - Second tunnel into South Korea discovered

Descripción:

The second tunnel was discovered on 19 March 1975. It is of similar length to the first tunnel. It is located between 160 and 520 ft below ground, but is larger than the first, approximately 7 by 7 feet.

Añadido al timeline:

fecha:

19 mar 1975 año
Ahora mismo
~ 50 years ago