Persons of National Historic Significance (National Historic Persons) are people designated by the Canadian government as being nationally significant in the history of the country. Designations are made by the Minister of the Environment on the recommendation of the Historic Sites and Monuments Board of Canada. Approximately 70 nominations are submitted to the board each year. A person is eligible to be listed 25 years after death, but Prime Ministers may be designated any time after death. Parks Canada administers the program, and installs and maintains the federal plaques commonly erected to commemorate each person, usually placed at a site closely associated with them. The intent is generally to honour the person's contribution to the country but is always to educate the public about t