Part 1. PBS looks at one of the incidents that gave rise to International Workers Day–May 1 or Mayday.
Haymarket Martyrs–Origins of International Workers Day Pt 2
Part 2. PBS looks at one of the incidents that gave rise to International Workers Day–May 1 or Mayday.
Haymarket Martyrs–Origins of International Workers Day Pt 3
Part 3. PBS looks at one of the incidents that gave rise to International Workers Day–May 1 or Mayday.