The International Day of Mourning is observed annually on April 28. This day honors workers who have lost their lives or suffered injuries due to workplace accidents and illnesses. It serves as a reminder of the importance of workplace safety and the need for better regulations to protect workers. Established in 1984 by the Canadian Labour Congress, the day is recognized globally, with various events held to raise awareness about occupational hazards. Many organizations and unions participate by organizing memorials, educational activities, and campaigns to promote safer working conditions for all employees.