In the late 1820s, north Georgia became the site of the first gold rush in the United States, predating the more famous California gold rush by two decades. It's also tied to some of the darkest parts of U.S. history regarding the treatment of Native Americans.
The 1917 Bisbee Deportation has elements of a labor strike, a wartime hysteria, a vigilante mob, and a mass propaganda effort, all rolled into one. It took place in Bisbee, Arizona, southeast of Tucson and close to the U.S. border with Mexico.
One of the worst mining tragedies in history, the explosion that sent fire through the Courrières mine tunnels claimed more than a thousand lives. It also created awareness of dangerous issues in mines that hadn't received much focus up to that point.