In a desolate valley outside Eureka, Nevada, lies the common grave where five Italian charcoal burners were shot dead in 1879 by a sheriff’s posse while striking for better wages on the burgeoning mining frontier. Their names were Giovanni Pedroni, Marcellus Locatelli, Teodoro Zesta, Pompeo Pattini, Antonio Canonica. Yet, for well over a century, t...