Workers' Memorial Day, also known as International Workers' Memorial Day or International Commemoration Day for Dead and Injured, takes place annually around the world on April 28, an international day of remembrance and action for workers killed, disabled, injured, or made unwell by their work. In Canada, it is commemorated as the National Day of Mourning.
Workers' Memorial Day ribbon
Manchester Workers' Memorial
Memorial of Fallen in 1970 Shipyard Workers. Gdansk, Poland
Plaque at Mount Rushmore National Monument with names of monument workers
Labor Day is a federal holiday in the United States celebrated on the first Monday of September to honor and recognize the American labor movement and the works and contributions of laborers to the development and achievements of the United States.
Labor Day Parade in New York's Union Square, 1882
P. J. McGuire, Vice President of the American Federation of Labor, is frequently credited as the father of Labor Day in the United States.
Labor Day parade on Pennsylvania Avenue in Washington, D.C., c. 1894