 The Canadian Labour Congress declared an annual day of remembrance in 1985 on April 28, which is the anniversary of a comprehensive Workers' Compensation Act (refer to the entry Workplace Safety & Insurance Board), passed in 1914.In 1991, the Canadian parliament passed an Act respecting a National Day of Mourning for persons killed or injured in the workplace, making April 28 an official Workers’ Mourning Day.For years Workers' Memorial Day events have been organized in North America, and then worldwide.