Thousands of miners in Congo dig by hand.
Indeed, exploding concentrations of underground methane have killed thousands of miners.
The accident again highlighted China's notoriously bad record on coal mine accidents, which kill thousands of miners each year.
Thousands of miners were said by union officials to be on strike at several gold and diamond mines to protest the detention of labor leaders.
As word of the president's pending resignation spread, thousands of miners, students and Indians crowded the Plaza de San Francisco near the presidential palace, setting off sticks of dynamite and shouting anti-government slogans.
The thousands of miners endured the same disease across the same time period in five Appalachian states, per the report, and federal regulators had the information to prevent it.
In 1920, thousands of miners faced off in the five-day Battle of Blair Mountain against armed strikebreakers and government forces in one of the largest labor uprisings in American history.
At the peak of the opal rush 40 years ago there were thousands of miners based in the town that can see summer temperatures top 47C (117F), but as finds have steadily fallen ever since, today there are just dozens.
The stream protection rule "has forced" thousands of miners in Ohio to lose their jobs, exclaimed Rep. David Joyce, R-Ohio, at a House Appropriations subcommittee hearing in March.
Thousands of miners are occupying the central squares in the towns hit by the strike, Soviet newspapers reported Sunday, although order is being maintained by patrols of workers as well as police.
Every morning, every night, thousands of miners change into work clothes, grab their hardhats and head lamps, clip on the identification tags that will identify them in case of disaster.
