On May 23, 2005, the section between Calgary and Edmonton was renamed the Queen Elizabeth II Highway in honour of Her Majesty's visit to Alberta as part of the province's centennial celebrations; the first road sign was personally unveiled by the Queen.
A review of historical Alberta official road maps shows that Highway 2 was numbered Highway 1 prior to 1941 (while the current Highway 1 was Highway 2 at the time) [REF].