Did you know Canada.. the idea of 9-1-1 - a centralized emergency number was first used in North America in Winnipeg Manitoba in 1959? It was orignally 9-9-9.
Stephen Juba, then mayor of Winnipeg, was the one that urged the idea of the centralized emergency number.
9-1-1 was used for a few reasons - to ensure it wasn't used accidentally, as the numbers "9" and "1" were on opposite ends of a phone's rotary dial. 9-1-1 was also not being used for any area codes in North America. Conversion to 9-1-1 started in 1972 in Canada.
Each year, Canadians make more than 12 million calls to 9-1-1.
Source: Wikipedia, The Globe and Mail, CBC Archives