Coal Mining Conditions In Late data mining importance
Coal Mining Conditions In Late 1800S the history of coal mining in the united states goes back to the 1300s, when the hopi indians used coal. the first commercial use came in 1701, within the manakinsabot area of richmond, ia. coal was the dominant power source in the united states in the late 1800s and early 1900s, and although in rapid decline it remains a significant