The National Day of Mourning is observed in Canada on the fourth Friday of April each year. It serves as a day to remember and honor workers who have lost their lives or suffered injuries while on the job. The day highlights the importance of workplace safety and the need for better protections for workers. On this day, various events and ceremonies take place across the country, including vigils and gatherings organized by labor unions and community groups. Participants often wear black ribbons to symbolize their solidarity and commitment to improving workplace conditions, ensuring that the sacrifices of fallen workers are not forgotten.