Mining was a major economic driver and wealth creator for Ontario and Quebec. Even today mining and resource are major exports.
in the 1900s
Coal mining and factories
mining, companies, businesses
=== ===workers and women
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The creation of the first cool camera.
Cotton.is the most important crop in the kentuky area-ando321
one thing is the Panama canel opened
in the 1900s in the 1900s 1900s
Profitability was very high, with mining costs at the point of extraction only 75 cents, while the selling price ranged from $15 to $18.