18 апр 1913 г. - 1913 620 mines across britain produced 287 million tons of coal ------------------------------------------------------------------------------------- Miners start taking caged canaries into mines to alert them to the presence of poisonous gas. ------------------------------------------------------------------------------------- Explosion at universal colliery in senghenydd near caerphilly killed 439 miners- the worst mining accident in history.
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18 апр 1913 г.
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~ 112 г назад