Coal also. Lead to things like Blair mountain[0], where poison gas bombs from WWI were dropped on American workers, in America.
There's four boxes.
There's four boxes.
There are a handful of regional books detailing the mine wars (Life, Work, and Rebellion in the Coal Fields, The WV Coal Wars/more elementary and Robert Shogan's The Battle of Blair Mountain) that are worth checking out. PBS (American Experience?) also had a 2 hour special a few years back that focused on WV and Mother Jones that was worth watching.