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1 ene 1872 año - coal mines regulation act - 1872

Descripción:

-managers needed certification,
-miners given right to appoint inspectors

Añadido al timeline:

Britain 1750-1880

ByRae Dyer
16 mar 2023
1
0
140

fecha:

1 ene 1872 año
Ahora mismo
~ 152 years ago
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