The Radium Girls: Occupational SafetyHow dying factory workers won basic rights for all.

From the show

Rules Written in Blood

It took women dying from glowing paint to establish that employers are responsible for workplace safety. In the 1920s, female factory workers were poisoned by the radium they used to paint watch dials. Their fight for justice against a company that denied all responsibility led to a landmark legal victory and stronger industrial safety standards that protect workers to this day.