Labor unions: Organizations formed by workers to collectively advocate for better working conditions and negotiate with employers on behalf of employees.
Strikes: Organized protests or refusals to work by employees demanding better working conditions or higher wages.
Triangle Shirtwaist Factory Fire: A tragic event in 1911 where inadequate workplace safety measures led to a fire in a New York City garment factory resulting in significant loss of life. This incident highlighted the need for improved working conditions.