Here’s a Smithsonian article about the Battle of Blair Mountain, a labor uprising from a hundred years ago by coal miners in the hills of West Virginia: https://www.smithsonianmag.com/history/battle-blair-mountain-largest-labor-uprising-american-history-180978520/
The Battle of Blair Mountain occurred about a year after the Battle of Matewan, immortalized in the 1987 John Sayles movie Matewan.
Last fall I wrote a post about unions in general, mostly how they seemed not to have as much presence and power as they once did.
Although we may often think of it in terms of cookouts, summer ending, pools closing, and kids heading back to school, Labor Day is all about celebrating workers and the rise of labor unions (Wikipedia article: https://en.m.wikipedia.org/wiki/Labor_Day).
The Smithsonian article is a sober reminder of the terrible price often paid by those who fought—or still fight—for workers’ rights.