On July 23, 1913, life changed in Michigan’s Upper Peninsula, and for union workers across the country. It was on that date that roughly 9,000 copper miners walked off the job in the Keweenaw peninsula protesting working conditions and wages. The strike lasted 8 months and in this episode of the Lake Superior Podcast, Walt Lindala and Frida Waara talk with Jo Holt, historian at the Keweenaw Historical Park, about what was happening in Calumet 110 years ago and its impact on the labor movement in America.