The power of unified opposition was long practiced by the Irish. From the days of Captain Boycott, and the anti-landlord societies in Ireland seeking agrarian reform, to the Molly Maguires in the Pennsylvania coal fields, and the formation of legitimate labor unions, the Irish have always been among the leaders of the movement. The Irish were an integral part of the Comstock Lode from ownership and management to laborer. One of the last times that American forces were allowed to organize by ethnic persuasion. Any one, or all three, of these would be an interesting study.
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